<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0874-2049</journal-id>
<journal-title><![CDATA[Psicologia]]></journal-title>
<abbrev-journal-title><![CDATA[Psicologia]]></abbrev-journal-title>
<issn>0874-2049</issn>
<publisher>
<publisher-name><![CDATA[Associação Portuguesa de Psicologia (APP)Edições Colibri]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0874-20492016000100001</article-id>
<article-id pub-id-type="doi">10.17575/rpsicol.v30i1.1034</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Evidências de validade da Escala de Orientação para a Comparação Social (INCOM) para o contexto de adolescentes portugueses]]></article-title>
<article-title xml:lang="en"><![CDATA[Validity evidence for Scale for Social Comparison Orientation (INCOM) in the Portuguese adolescents' context]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lins]]></surname>
<given-names><![CDATA[Samuel Lincoln Bezerra]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leite]]></surname>
<given-names><![CDATA[Ana C.]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[Catarina L.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardoso]]></surname>
<given-names><![CDATA[Sónia]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Natividade]]></surname>
<given-names><![CDATA[Jean Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidade Católica do Rio de Janeiro  ]]></institution>
<addr-line><![CDATA[Brasil ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidade do Porto  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A03">
<institution><![CDATA[,University of Roehampton  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Reino Unido</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2016</year>
</pub-date>
<volume>30</volume>
<numero>1</numero>
<fpage>1</fpage>
<lpage>14</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0874-20492016000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0874-20492016000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0874-20492016000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Neste estudo procuramos validar a escala Iowa-Netherlands Comparison Orientation Scale numa amostra de adolescentes portugueses. Esta escala mede níveis de orientação da comparação social. Participaram no estudo 238 estudantes portugueses, com idades entre os 13 e os 18 anos (M = 15.43, DP = 1.76). Verificou-se que a estrutura da escala estava de acordo com a versão original do instrumento, dividindo-se em duas dimensões com índices satisfatórios de consistência interna: Opiniões e Aptidões. A dimensão Opiniões correlacionou-se positivamente com a Autoestima e o Materialismo, e a dimensão Aptidões apresentou correlações positivas com o Self-comparado, o Materialismo e a Impulsividade na compra. No que diz respeito às diferenças de sexo, as raparigas apresentaram médias superiores na dimensão de Opiniões e os rapazes em Aptidões. Os resultados confirmam a adequação da versão portuguesa da escala para avaliar a tendência para a comparação social em adolescentes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The aim of this study was to translate and search for validity evidence of Iowa-Netherlands Comparison Orientation Scale for adolescents' Portuguese context. This scale assesses levels of social comparison orientation. Participants were 238 adolescents, with ages between 13 and 18 years (M = 15.43, SD = 1.76). We verified that scale structure was in line with the original instrument version. Two dimensions emerged: Opinions and Abilities, both with satisfactory internal consistency indices. The dimension Opinions correlated positively with Self-esteem and Materialism; Abilities showed positive correlations with Self-compared, Materialism and Impulse buying. Regarding sex differences, girls showed higher mean for Opinions; boys higher mean for Abilities. Our results strengthen the Portuguese scale version adequacy to assess a tendency towards social comparison in adolescents.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Comparação Social]]></kwd>
<kwd lng="pt"><![CDATA[Adolescentes]]></kwd>
<kwd lng="pt"><![CDATA[Testes psicológicos]]></kwd>
<kwd lng="pt"><![CDATA[Validade do teste]]></kwd>
<kwd lng="en"><![CDATA[Social Comparison]]></kwd>
<kwd lng="en"><![CDATA[Adolescents]]></kwd>
<kwd lng="en"><![CDATA[Psychological test]]></kwd>
<kwd lng="en"><![CDATA[Test validity]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  <head> </head>      <p><font face="Verdana" size="4"><b>Evid&#234;ncias de validade da Escala de Orienta&#231;&#227;o para a Compara&#231;&#227;o Social (INCOM) para o contexto de adolescentes portugueses</b></font></p>      <p><font face="Verdana" size="3"><b>Validity evidence for Scale for Social Comparison Orientation (INCOM) in the Portuguese adolescents' context</b></font></p>      <p>&nbsp;</p>      <p><font face="Verdana" size="2"><b>Samuel Lincoln Bezerra Lins<sup>I,c</sup>; Miguel Campos<sup>II</sup>; Ana C. Leite<sup>III</sup>; Catarina L. Carvalho<sup>IV</sup>; S&#243;nia Cardoso<sup>V</sup>; Jean Carlos Natividade<sup>VI</sup></b></font></p>      <p><font face="Verdana" size="2"><sup>I,VI</sup>Pontif&#237;cia Universidade Cat&#243;lica do Rio de Janeiro, Brasil</font></p>      <p><font face="Verdana" size="2"><sup>II,IV,V</sup>Universidade do Porto, Portugal</font></p>      <p><font face="Verdana" size="2"><sup>III</sup>University of Roehampton, Reino Unido</font></p>      <p><font face="Verdana" size="2"><sup>c</sup><a href="#c0">Autor para correspond&#234;ncia</a><a name="topc0"></a></font></p>  <hr size="1" noshade>     <p>&nbsp;</p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><b>RESUMO</b></font></p>      <p><font face="Verdana" size="2">Neste estudo procuramos validar a escala <i>Iowa-Netherlands Comparison Orientation Scale</i> numa amostra de adolescentes portugueses. Esta escala mede n&#237;veis de orienta&#231;&#227;o da compara&#231;&#227;o social. Participaram no estudo 238 estudantes portugueses, com idades entre os 13 e os 18 anos (<i>M</i> = 15.43, <i>DP</i> = 1.76). Verificou-se que a estrutura da escala estava de acordo com a vers&#227;o original do instrumento, dividindo-se em duas dimens&#245;es com &#237;ndices satisfat&#243;rios de consist&#234;ncia interna: Opini&#245;es e Aptid&#245;es. A dimens&#227;o Opini&#245;es correlacionou-se positivamente com a Autoestima e o Materialismo, e a dimens&#227;o Aptid&#245;es apresentou correla&#231;&#245;es positivas com o <i>Self</i>-comparado, o Materialismo e a Impulsividade na compra. No que diz respeito &#224;s diferen&#231;as de sexo, as raparigas apresentaram m&#233;dias superiores na dimens&#227;o de Opini&#245;es e os rapazes em Aptid&#245;es. Os resultados confirmam a adequa&#231;&#227;o da vers&#227;o portuguesa da escala para avaliar a tend&#234;ncia para a compara&#231;&#227;o social em adolescentes.</font></p>      <p><font face="Verdana" size="2"><b>Palavras-chave:</b> Compara&#231;&#227;o Social; Adolescentes; Testes psicol&#243;gicos; Validade do teste.</font></p>  <hr size"1" noshade>      <p><font face="Verdana" size="2"><b>ABSTRACT</b></font></p>      <p><font face="Verdana" size="2">The aim of this study was to translate and search for validity evidence of Iowa-Netherlands Comparison Orientation Scale for adolescents' Portuguese context. This scale assesses levels of social comparison orientation. Participants were 238 adolescents, with ages between 13 and 18 years (<i>M</i> = 15.43, <i>SD</i> = 1.76). We verified that scale structure was in line with the original instrument version. Two dimensions emerged: Opinions and Abilities, both with satisfactory internal consistency indices. The dimension Opinions correlated positively with Self-esteem and Materialism; Abilities showed positive correlations with Self-compared, Materialism and Impulse buying. Regarding sex differences, girls showed higher mean for Opinions; boys higher mean for Abilities. Our results strengthen the Portuguese scale version adequacy to assess a tendency towards social comparison in adolescents.</font></p>      <p><font face="Verdana" size="2"><b>Keywords:</b> Social Comparison; Adolescents; Psychological test; Test validity.</font></p>  <hr size="1" noshade>     <p>&nbsp;</p>      <p><font face="Verdana" size="2">Desde meados do s&#233;culo XX que &#233; reconhecido o papel fundamental dos processos de compara&#231;&#227;o social, n&#227;o s&#243; como um meio atrav&#233;s do qual as pessoas compreendem melhor o mundo que os rodeia, mas tamb&#233;m enquanto forma de avalia&#231;&#227;o do seu valor pessoal. Neste sentido, v&#225;rios instrumentos de medida t&#234;m sido desenvolvidos em torno deste conceito.</font></p>      <p><font face="Verdana" size="2">Apesar de existirem diversas escalas adaptadas para o contexto portugu&#234;s que recorrem ao conceito de compara&#231;&#227;o social, como a Escala de Compara&#231;&#227;o Social (Allan &amp; Gilbert, 1995), a Escala de Compara&#231;&#227;o Social atrav&#233;s da Apar&#234;ncia F&#237;sica (Ferreira, Gouveia, &amp; Duarte, 2011), e a <i>Adolescent Social Comparison Scale</i> &#8212; <i>Revised</i>, ASCS-R (Irons &amp; Gilbert, 2005), nenhuma afere a orienta&#231;&#227;o/tend&#234;ncia para a compara&#231;&#227;o social. Neste sentido, o presente artigo visa colmatar esta lacuna e proporcionar evid&#234;ncias da validade da <i>Iowa-Netherlands Comparison Orientation Measure</i> &#8212; INCOM (Gibbons &amp; Buunk, 1999). Esta escala pretende aferir a tend&#234;ncia dos indiv&#237;duos para se compararem com outros. Embora a INCOM seja extensamente utilizada na investiga&#231;&#227;o sobre compara&#231;&#227;o social (e.g., Bogaerts &amp; Mario, 2013; Feinstein et al., 2013; Norvilitis &amp; Yingmei, 2013; Petersen et al., 2012; Ruiter &amp; Sheri, 2015), n&#227;o foi ainda aplicada ao contexto adolescente portugu&#234;s.</font></p>      <p><font face="Verdana" size="2"><b>Teoria da Compara&#231;&#227;o Social</b></font></p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">Na base de toda a investiga&#231;&#227;o feita sobre os processos de compara&#231;&#227;o social est&#227;o os postulados de Festinger (1954). Atrav&#233;s da teoria da compara&#231;&#227;o social, o autor prop&#244;s que as compara&#231;&#245;es sociais s&#227;o fontes privilegiadas de informa&#231;&#227;o sobre n&#243;s mesmos, influenciando os nossos comportamentos, experi&#234;ncias e julgamentos (e.g., Corcoran, Crusious &amp; Mussweiler, 2011). Assim, a compara&#231;&#227;o social ocorre quando as pessoas avaliam as suas pr&#243;prias caracter&#237;sticas, comparando as suas aptid&#245;es e opini&#245;es com as de outras pessoas (Festinger, 1954). Por meio desse processo, os indiv&#237;duos n&#227;o s&#243; aumentam a confian&#231;a no seu pr&#243;prio valor, como tamb&#233;m reduzem a incerteza acerca do mundo que os rodeia (Festinger, 1950). As compara&#231;&#245;es sociais s&#227;o, sobretudo, estabelecidas com pessoas percebidas como semelhantes. Estes alvos de compara&#231;&#227;o preferenciais permitem aos indiv&#237;duos obter informa&#231;&#245;es mais apropriadas e informativas sobre si mesmos (Festinger, 1950). Deste modo, a compara&#231;&#227;o social com outros semelhantes permite aos indiv&#237;duos atribuir sentido a si mesmos e ao mundo que os rodeia (Buunk &amp; Gibbons, 2006).</font></p>      <p><font face="Verdana" size="2">Enquanto existem aspetos da realidade que podem ser testados fisicamente (e.g., se atirar um ovo ao ch&#227;o, ser&#225; que ele parte?), outros s&#243; podem ser aferidos recorrendo a outras pessoas (e.g., ser&#225; que &#233; bom usar roupa desta marca?). Sendo assim, o processo de compara&#231;&#227;o social ser&#225;, tamb&#233;m, um meio de obten&#231;&#227;o de valida&#231;&#227;o social (Festinger, 1954).</font></p>      <p><font face="Verdana" size="2"><b>Elementos, Motiva&#231;&#227;o e Consequ&#234;ncias da Compara&#231;&#227;o Social</b></font></p>      <p><font face="Verdana" size="2">Qualquer aspeto do indiv&#237;duo pode ser objeto de compara&#231;&#227;o com os outros (Gibbons &amp; Buunk, 1999). A investiga&#231;&#227;o sugere uma variedade de dom&#237;nios, tais como a imagem corporal (Krayer, Ingledew, &amp; Iphofen, 2008), os h&#225;bitos alimentares (Wheeler &amp; Miyake, 1992), ou as opini&#245;es e aptid&#245;es pessoais em rela&#231;&#227;o &#224;s quais os indiv&#237;duos procuram valida&#231;&#227;o junto de outros semelhantes (Gibbons &amp; Buunk, 1999).</font></p>      <p><font face="Verdana" size="2">Relativamente &#224;s <i>motiva&#231;&#245;es</i> subjacentes &#224; compara&#231;&#227;o social, para al&#233;m da motiva&#231;&#227;o para a autoavalia&#231;&#227;o, as pessoas podem tamb&#233;m estar motivadas para o autoaperfei&#231;oamento, i.e., procurar continuamente aperfei&#231;oar-se e melhorar as suas capacidades, aprendendo com os outros (Taylor &amp; Lobel, 1989). Assim, poder&#227;o procurar comparar-se com outros que considerem superiores na dimens&#227;o de compara&#231;&#227;o &#8212; compara&#231;&#227;o ascendente (Morse &amp; Gergen, 1970; cf. Myers &amp; Crowther, 2009). Poder&#227;o ainda estar motivadas para o autoengrandecimento, i.e., motiva&#231;&#227;o para obter ou manter uma imagem positiva de si mesmos (Suls &amp; Miller, 1977; Gibbons &amp; Buunk, 1999). Dessa forma, os objetos de compara&#231;&#227;o social ser&#227;o indiv&#237;duos considerados inferiores na dimens&#227;o de compara&#231;&#227;o &#8212; compara&#231;&#227;o descendente (Taylor &amp; Lobel, 1989; ver tamb&#233;m Bonifield &amp; Cole, 2008; Myers &amp; Crowther, 2009). O objeto de compara&#231;&#227;o poder&#225;, assim, variar de acordo com a motiva&#231;&#227;o pessoal (Wood, 1989).</font></p>      <p><font face="Verdana" size="2">No que diz respeito &#224;s consequ&#234;ncias do processo de compara&#231;&#227;o social, e apesar de algumas exce&#231;&#245;es (e.g., Buunk, Collins, Taylor, Van Yperen, &amp; Dakof, 1990), a maioria da investiga&#231;&#227;o nessa &#225;rea sugere que as compara&#231;&#245;es ascendentes t&#234;m maior probabilidade de provocar consequ&#234;ncias negativas (e.g., baixa autoestima, inveja, frustra&#231;&#227;o) nas pessoas (Morse &amp; Gergen, 1970; Marsh &amp; Parker, 1984). Pelo contr&#225;rio, as compara&#231;&#245;es descendentes geram consequ&#234;ncias e sentimentos positivos, especialmente em indiv&#237;duos sob stress (Wood, Taylor, &amp; Lichtman, 1985).</font></p>      <p><font face="Verdana" size="2">Segundo Festinger (1954), os indiv&#237;duos podem inibir as suas compara&#231;&#245;es sociais com os outros, em especial quando essas compara&#231;&#245;es t&#234;m consequ&#234;ncias negativas. Assim, seria de esperar que os indiv&#237;duos n&#227;o se comparassem com outros percebidos como superiores, uma vez que compara&#231;&#245;es desse tipo s&#227;o frequentemente depreciativas para si mesmos e acarretam consequ&#234;ncias negativas para a sua autoavalia&#231;&#227;o. Contudo, a literatura indica que nem sempre &#233; o caso (e.g., Myers &amp; Crowther, 2009). Por exemplo, as mulheres fazem frequentemente compara&#231;&#245;es sociais ascendentes, geralmente associadas &#224; apar&#234;ncia f&#237;sica, apesar das consequ&#234;ncias e sentimentos negativos da&#237; decorrentes (Leahey, Crowther, &amp; Mikelson, 2007; Bamford &amp; Halliwell, 2009). Tamb&#233;m Heinberg e Thompson (1995) verificaram que as mulheres que mais internalizam as normas culturais relativas &#224; beleza s&#227;o as que mais se comparam com modelos profissionais, que s&#227;o percebidas como objetos relevantes de compara&#231;&#227;o social. Ainda no que respeita &#224; imagem corporal, as mulheres n&#227;o procuram apenas comparar-se com outras semelhantes, mas tamb&#233;m com imagens dissimilares e idealizadas de si mesmo (Strahan, Wilson, Cresman, &amp; Buote, 2006; ver tamb&#233;m Lev-Ari, Baumgarten-Katz &amp; Zohar, 2014).</font></p>      <p><font face="Verdana" size="2"><b>Diferen&#231;as Individuais no Processo de Compara&#231;&#227;o Social</b></font></p>      <p><font face="Verdana" size="2">De acordo com Gilbert, Giesler e Morris (1995), o processo de compara&#231;&#227;o social &#233; um impulso universal, espont&#226;neo e relativamente autom&#225;tico que est&#225; ligado &#224; nossa constitui&#231;&#227;o biol&#243;gica. Apesar disto, as diferen&#231;as individuais fazem-se notar: nem todas as pessoas possuem a mesma predisposi&#231;&#227;o para se compararem com outras (e.g., Buunk &amp; Dijkstra, 2014). De facto, o grau, a frequ&#234;ncia e as consequ&#234;ncias da compara&#231;&#227;o social variam (Buunk &amp; Gibbons, 2006; Gibbons &amp; Buunk, 1999). Para captar estas diferen&#231;as interindividuais na predisposi&#231;&#227;o para efetuar compara&#231;&#245;es sociais, Gibbons e Buunk (1999) propuseram o conceito de orienta&#231;&#227;o para a compara&#231;&#227;o social. De acordo com esses autores, pessoas com alta orienta&#231;&#227;o para a compara&#231;&#227;o social tendem a pensar mais sobre si mesmas na presen&#231;a de outros, a ser emp&#225;ticas e sens&#237;veis &#224;s necessidades dos outros, e a possuir uma baixa autoestima (para uma revis&#227;o, Buunk &amp; Gibbons, 2006; ver tamb&#233;m Buunk &amp; Dijkstra, 2014). S&#227;o tamb&#233;m essas pessoas as mais afetadas pelos resultados das compara&#231;&#245;es sociais (Buunk, Zurriaga, Pe&#237;r&#243;, Nauta, &amp; Gosalvez, 2005; Van der Zee, Oldersman, Buunk, &amp; Bos, 1998). H&#225;, contudo, uma etapa da vida em que a tend&#234;ncia para se comparar com outros semelhantes poder&#225; ser mais vincada: a adolesc&#234;ncia.</font></p>      <p><font face="Verdana" size="2"><b>Compara&#231;&#227;o Social nos Adolescentes</b></font></p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">A adolesc&#234;ncia &#233; uma fase determinante no desenvolvimento de compet&#234;ncias importantes para a vida adulta (Palmonari, Pombeni, &amp; Kirchler, 1992). Trata-se de uma fase amplamente marcada por sentimentos de incerteza e de ambiguidade (Palmonari et al., 1992), e por tens&#245;es e conflitos (Coleman &amp; Hendry, 1990). Nesta fase de desenvolvimento, o grupo de pares assume um papel central, acompanhando a transi&#231;&#227;o do adolescente, das rela&#231;&#245;es familiares para outros relacionamentos sociais. O adolescente procura autonomia relativamente &#224; sua fam&#237;lia, substituindo o seu papel desta pela companhia dos grupos de pares, com os quais partilha experi&#234;ncias e desenvolve novos valores (Palmonari et al., 1992).</font></p>      <p><font face="Verdana" size="2">A perten&#231;a grupal &#233; t&#227;o relevante que pode at&#233; influenciar o comportamento dos adolescentes, mesmo antes de pertenceram a um grupo (Newman, Lohman, &amp; Newman, 2007). De facto, os adolescentes podem alterar os seus comportamentos para serem aceites num grupo. Por exemplo, investiga&#231;&#245;es t&#234;m mostrado que o consumo de tabaco est&#225; associado ao grupo de pares e &#224; motiva&#231;&#227;o para a aprova&#231;&#227;o social (Conrad, Flay, &amp; Hill, 1992; Friedman, Lichtenstein, &amp; Biglan, 1985).</font></p>      <p><font face="Verdana" size="2">Os adolescentes prestam, tamb&#233;m, aten&#231;&#227;o &#224;s consequ&#234;ncias das atitudes e comportamentos dos seus pares. Fiske (2004) destacou que os adolescentes aprendem as atitudes que s&#227;o aceit&#225;veis ao observarem as recompensas e puni&#231;&#245;es de que os outros s&#227;o alvo (e.g., mediante a roupa que usam, a m&#250;sica que ouvem, as convic&#231;&#245;es que defendem, entre outros). Essa ideia relaciona-se com a necessidade de aprova&#231;&#227;o social e de perten&#231;a a grupos sociais (Baumeister &amp; Leary, 1995). O sentimento de perten&#231;a e a perce&#231;&#227;o de sucesso no relacionamento com outros t&#234;m um impacto poderoso e altamente recompensador na autoestima dos indiv&#237;duos (Leary, Tambor, Terdal, &amp; Downs, 1995). Por outro lado, o sentimento de rejei&#231;&#227;o pode representar custos elevados para os adolescentes, e est&#225; relacionado com problemas ao n&#237;vel da autorregula&#231;&#227;o, ansiedade e depress&#227;o (Baumeister, DeWall, Ciarocco, &amp; Twenge, 2005).</font></p>      <p><font face="Verdana" size="2">Nos adolescentes, os processos de compara&#231;&#227;o social t&#234;m vindo a ser associados &#224; insatisfa&#231;&#227;o corporal, sobretudo em raparigas (Jones, 2001; cf. Krayer, Ingledew, &amp; Iphofen, 2007). Mueller, Pearson, Muller, Frank e Turner (2010) conduziram um estudo longitudinal no qual evidenciaram que as adolescentes que se comparavam com pares semelhantes no que diz respeito ao aspeto f&#237;sico reportavam mais tentativas de perda de peso (ver tamb&#233;m Paxton, Schutz, Wertheim, &amp; Muir, 1999). Jones, Vigfusdottir e Lee (2004) mostraram que a influ&#234;ncia do grupo de pares &#8212; quer positiva, atrav&#233;s de conversas sobre a imagem corporal, quer negativa, atrav&#233;s de cr&#237;ticas a essa imagem &#8212; est&#225; significativamente associada &#224; internaliza&#231;&#227;o de ideais de beleza e &#224; imagem corporal em adolescentes de ambos os sexos. Field, Cheung, Wolf, Herzog, Gortmaker e Colditz (1999) conduziram um inqu&#233;rito em jovens adolescentes do sexo feminino, das quais 69% indicou que as fotografias de revistas influenciam os seus ideais corporais e 47% referiu que essas imagens influenciam a sua vontade de perda de peso.</font></p>      <p><font face="Verdana" size="2">Os bens materiais s&#227;o, tamb&#233;m, um aspeto de compara&#231;&#227;o relevante para os adolescentes. Por exemplo, Chan e Prendergast (2007, 2008) encontraram evid&#234;ncias de compara&#231;&#227;o social com os pares, bem como com figuras p&#250;blicas. Os adolescentes que fazem compara&#231;&#245;es deste tipo acreditam mais que os bens materiais est&#227;o relacionados com o sucesso e a felicidade e, como tal, ocupam um papel central na vida. No mesmo sentido, Twenge e Kasser (2013) mostram que o materialismo &#233; um dos valores que tem vindo a aumentar na popula&#231;&#227;o adolescente nas &#250;ltimas gera&#231;&#245;es.</font></p>      <p><font face="Verdana" size="2">A compara&#231;&#227;o social parece, assim, assumir um papel determinante no desenvolvimento de atitudes e na altera&#231;&#227;o de comportamentos por parte dos adolescentes. Torna-se, portanto, evidente a relev&#226;ncia do desenvolvimento de instrumentos que me&#231;am a orienta&#231;&#227;o para a compara&#231;&#227;o social neste p&#250;blico.</font></p>      <p><font face="Verdana" size="2"><b>Instrumentos que avaliam a compara&#231;&#227;o social</b></font></p>      <p><font face="Verdana" size="2">Diversas escalas que avaliam a compara&#231;&#227;o social t&#234;m sido adaptadas para aplica&#231;&#227;o ao contexto portugu&#234;s. Por exemplo, a Escala de Compara&#231;&#227;o Social - ECS (<i>Social Comparison Scale</i>) desenvolvida por Allan e Gilbert (1995), foi traduzida e adaptada ao contexto portugu&#234;s por Gato (2003). A escala &#233; composta por 11 itens bipolares (e.g., Inferior-Superior, Rejeitado-Aceite), onde &#233; solicitado aos participantes que se posicionem relativamente a como se sentem no relacionamento com os outros (Allan &amp; Gilbert, 1995).</font></p>      <p><font face="Verdana" size="2">Ferreira, Gouveia e Duarte (2011) desenvolveram uma Escala de Compara&#231;&#227;o Social atrav&#233;s da Apar&#234;ncia F&#237;sica (ECSAF), com uma amostra de 1728 portuguesas, de modo a &#8220;medir a perce&#231;&#227;o de atratividade, de hierarquia social e de ajustamento ao grupo de acordo com a perce&#231;&#227;o que os sujeitos t&#234;m da sua apar&#234;ncia f&#237;sica, avaliando a forma como se comparam com os outros a este n&#237;vel&#8221; (Ferreira, Gouveia, &amp; Duarte, 2011, p. 315).</font></p>      <p><font face="Verdana" size="2">Recentemente, a Escala de Compara&#231;&#227;o Social para Adolescentes &#8212; Revista (<i>Adolescent Social Comparison Scale</i> &#8212; <i>Revised</i>, ASCS-R) de Irons e Gilbert (2005), foi traduzida e adaptada por Xavier, Cunha, Gouvei e Medeiros (2014), tamb&#233;m adaptada da Escala de Compara&#231;&#227;o Social (ECS), atrav&#233;s da qual os adolescentes se comparam com outros a partir de adjetivos bipolares.</font></p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">Por fim, destaca-se a escala que foi o alvo deste estudo, a <i>Iowa-Netherlands Comparison Orientation Measure</i> (INCOM) desenvolvida por Gibbons e Buunk, (1999). Esta escala pretende medir as diferen&#231;as individuais na orienta&#231;&#227;o para a compara&#231;&#227;o social. Apesar de a INCOM ser comummente utilizada e difundida na literatura (e.g. Buunk, Ybema, Gibbons, &amp; Ipenburg, 2001; Buunk et al., 2005; Carey, Henson, Carey, &amp; Maisto, 2007; Norvilitis &amp; Mendes-Da-Silva, 2013; Piko &amp; Gibbons, 2008; Van Der Zee et al., 1998), n&#227;o existem, que seja do nosso conhecimento, estudos que validem a sua aplica&#231;&#227;o em Portugal e, especificamente, junto da popula&#231;&#227;o adolescente.</font></p>      <p><font face="Verdana" size="2">A INCOM &#233; constitu&#237;da por 11 itens, e foi desenvolvida com base numa amostra de norte-americanos e holandeses, tendo mostrado evid&#234;ncias de validade para um total de 22 amostras (administrada a 10 amostras nos Estados Unidos e 12 amostras na Holanda). A amostra inicial, com a popula&#231;&#227;o americana, foi constitu&#237;da por 403 adolescentes. Os resultados obtidos atrav&#233;s de an&#225;lise fatorial revelaram a presen&#231;a de dois fatores designados respetivamente por Aptid&#245;es (6 itens) e Opini&#245;es (5 itens).</font></p>      <p><font face="Verdana" size="2">Uma vez que se verificou que a estrutura de apenas um fator era tamb&#233;m vi&#225;vel, foi realizada uma an&#225;lise confirmat&#243;ria que indicou que a estrutura bi-fatorial se ajustava melhor do que a estrutura uni-fatorial. Assim, sugere-se ser mais adequado assumir a INCOM como um construto com dois fatores distintos e relacionados entre si (Gibbons &amp; Buunk, 1999). Relativamente &#224; consist&#234;ncia interna da escala, verificou-se um valor de coeficiente <i>alfa</i> de .83, na escala original, e valores similares nas restantes amostras, variando entre .78 e .85 nas 10 amostras norte-americanas, e entre .78 e .84 nas 12 amostras holandesas.</font></p>      <p><font face="Verdana" size="2">Posteriormente, a escala foi traduzida e testada numa amostra espanhola (Buunk, Belmonte, Peir&#243;, Zurriaga, &amp; Gibbons, 2005) em dois estudos distintos. O primeiro estudo decorreu com uma amostra de 212 estudantes universit&#225;rios, e o segundo com 782 trabalhadores adultos. A an&#225;lise da consist&#234;ncia interna da escala identificou valores satisfat&#243;rios de consist&#234;ncia interna, de .80 e .81, respetivamente. Outros estudos revelaram uma boa consist&#234;ncia interna da escala e a mesma estrutura bi-fatorial (Norvilitis &amp; Mendes-Da-Silva, 2013). Neste sentido, o presente estudo pretende testar a validade da <i>Iowa-Netherlands Comparison Orientation Measure</i> (INCOM) no contexto de adolescentes portugueses.</font></p>      <p><font face="Verdana" size="2"><b>M&#233;todo</b></font></p>      <p><font face="Verdana" size="2"><b>Participantes</b></font></p>      <p><font face="Verdana" size="2">Participaram no estudo 238 adolescentes (117 rapazes e 121 raparigas), com idades compreendidas entre os 13 e os 18 anos (<i>M</i> = 15.4, <i>DP</i> = 1.76), que frequentavam o 8.&#186; (<i>n</i> = 101), 10.&#186; (<i>n</i> = 34), 11.&#186; (<i>n</i> = 81) e 12.&#186; ano (<i>n</i> = 22) de escolaridade numa escola p&#250;blica na cidade da Maia (Distrito de Porto, Portugal). A participa&#231;&#227;o dos jovens foi volunt&#225;ria e decorreu em contexto de sala de aula.</font></p>      <p><font face="Verdana" size="2"><b>Instrumentos</b></font></p>      <p><font face="Verdana" size="2">Utilizou-se um question&#225;rio constitu&#237;do por quest&#245;es sociodemogr&#225;ficas (sexo, idade, escolaridade), a vers&#227;o final em portugu&#234;s da <i>Iowa-Netherlands Comparison Orientation Measure</i> (traduzida para este estudo), uma medida de autoestima (Avanci, Assis, Santos, &amp; Oliveira, 2007), uma medida de <i>self</i>-comparado (Segabinazi, Giacomoni, Dias, Teixeira, &amp; Moraes, 2010), uma escala de materialismo (Richins, 2004), e uma escala de impulsividade nas compras (Sproles &amp; Kendall, 1986). De seguida, apresentamos uma descri&#231;&#227;o detalhada das escalas utilizadas. Todas as medidas foram recolhidas atrav&#233;s de escalas de 7 pontos (1 = <i>Discordo totalmente</i>, 7 = <i>Concordo totalmente</i>).</font></p>      <p><font face="Verdana" size="2"><i>Iowa-Netherlands Comparison Orientation Measure</i> </font></p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">A INCOM (traduzida para portugu&#234;s) foi originalmente desenvolvida por Gibbons e Buunk (1999) e pretende aferir os n&#237;veis de orienta&#231;&#227;o para a compara&#231;&#227;o social por meio de duas dimens&#245;es: <i>Aptid&#245;es</i> e <i>Opini&#245;es</i>. O instrumento consiste numa escala de 11 itens (ver <a href="#a1">Anexo</a><a name=topa1>).</font></p>      <p><font face="Verdana" size="2"><i>Medida de autoestima para adolescentes</i></font></p>      <p><font face="Verdana" size="2">A medida de autoestima inclui quatro itens, correspondentes &#224; dimens&#227;o <i>Alta Autoestima,</i> do instrumento de autoestima de Avanci et al (2007). Os itens selecionados para este estudo foram os seguintes: &#8220;No global, eu estou satisfeito comigo; Sinto que tenho v&#225;rias boas qualidades; Sou capaz de fazer coisas t&#227;o bem como a maioria das pessoas; Tenho uma atitude positiva em rela&#231;&#227;o a mim mesmo&#8221;. Neste estudo os itens apresentaram um &#237;ndice de consist&#234;ncia interna igual a .86.</font></p>      <p><font face="Verdana" size="2"><i>Medida de self-comparado</i></font></p>      <p><font face="Verdana" size="2">Esta escala (Segabinazi et al., 2010) corresponde a uma subescala do instrumento de satisfa&#231;&#227;o de vida e sucesso em adolescentes por compara&#231;&#227;o com os seus pares. A subescala &#233; composta por seis afirma&#231;&#245;es: &#8220;Meus amigos divertem-se mais do que eu; Meus amigos passeiam mais do que eu; Meus amigos podem fazer mais coisas do que eu; Os outros adolescentes ganham mais presentes do que eu; Os outros adolescentes t&#234;m mais amigos do que eu; Os outros adolescentes s&#227;o mais alegres do que eu&#8221;. Neste estudo, a subescala apresentou um &#237;ndice de consist&#234;ncia interna de .86.</font></p>      <p><font face="Verdana" size="2"><i>Escala de Materialismo</i></font></p>      <p><font face="Verdana" size="2">Este instrumento (Richins, 2004) avalia a import&#226;ncia atribu&#237;da aos bens materiais e corresponde a uma vers&#227;o de nove itens (<i>Î±</i> = .84) adaptada para  portugu&#234;s por Ponchio, Aranha e Todd (2007): &#8220;Admiro pessoas que possuem casas, carros e roupas caras; Gosto de gastar dinheiro com coisas caras; Minha vida seria melhor se tivesse muitas coisas que n&#227;o tenho; Comprar coisas d&#225;-me muito prazer; Ficaria muito mais feliz se pudesse comprar mais coisas; Gosto de muito luxo na minha vida; Incomoda-me quando n&#227;o posso comprar tudo o que quero; Gastar dinheiro est&#225; entre as coisas mais importantes da vida; Gosto de possuir coisas que impressionam os outros.&#8220;</font></p>      <p><font face="Verdana" size="2"><i>Escala de impulsividade na compra</i></font></p>      <p><font face="Verdana" size="2">A escala, composta por tr&#234;s itens (<i>Î±</i> = .58), foi retirada do <i>Consumer Style Inventory</i> (CSI) (Sproles &amp; Kendall, 1986) e adaptada para o p&#250;blico adolescente no contexto brasileiro por Santos e Fernandes (2006): &#8220;Eu sou impulsivo(a) quando estou comprando; Frequentemente fa&#231;o compras sem cuidado, as quais, mais tarde, desejaria n&#227;o ter feito; Deveria planear as minhas compras com mais cuidado.&#8221;</font></p>      <p><font face="Verdana" size="2"><b>Procedimentos</b></font></p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><i>Tradu&#231;&#227;o da Escala</i></font></p>      <p><font face="Verdana" size="2">Para a tradu&#231;&#227;o da escala para o portugu&#234;s foram utilizadas a vers&#227;o em ingl&#234;s (Gibbons &amp; Buunk, 1999) e a vers&#227;o em espanhol (Brunk et al., 2005). Optou-se por iniciar o processo de tradu&#231;&#227;o usando a vers&#227;o espanhola do instrumento em fun&#231;&#227;o da semelhan&#231;a desse idioma com o portugu&#234;s (comparativamente com o ingl&#234;s). Inicialmente, duas psic&#243;logas com conhecimentos avan&#231;ados na l&#237;ngua inglesa e portuguesa, e fluentes em espanhol (l&#237;ngua nativa), traduziram, cada uma, o instrumento do espanhol para o portugu&#234;s. De seguida, um dos investigadores compilou as duas vers&#245;es num &#250;nico documento, procurando consenso entre as tradu&#231;&#245;es. Quando se encontraram diferen&#231;as entre as tradu&#231;&#245;es, solicitou-se &#224;s tradutoras que, em conjunto, indicassem a reda&#231;&#227;o mais adequada para o item.</font></p>      <p><font face="Verdana" size="2">Por fim, as tradutoras e um dos investigadores compararam a vers&#227;o compilada em portugu&#234;s com a vers&#227;o em ingl&#234;s a fim de adequarem a vers&#227;o em portugu&#234;s ao instrumento original. Ap&#243;s esse procedimento, realizaram-se alguns ajustamentos considerados pertinentes, obtendo-se a primeira vers&#227;o do instrumento em portugu&#234;s. Essa primeira vers&#227;o do instrumento foi apresentada a um grupo de adolescentes para que avaliassem a percetibilidade e compreens&#227;o dos itens. A partir das sugest&#245;es do grupo, procedeu-se a pequenas altera&#231;&#245;es na reda&#231;&#227;o de determinados itens (e.g., inclus&#227;o de pronomes na reda&#231;&#227;o dos itens) e obteve-se a vers&#227;o portuguesa da <i>Iowa-Netherlands Comparison Orientation Measure</i> (INCOM).</font></p>      <p><font face="Verdana" size="2"><i>Recolha e an&#225;lise dos dados</i></font></p>      <p><font face="Verdana" size="2">Os question&#225;rios foram aplicados em sala de aula, numa escola p&#250;blica portuguesa. Os participantes foram informados sobre o car&#225;ter volunt&#225;rio da participa&#231;&#227;o, bem como da garantia do anonimato e sigilo da investiga&#231;&#227;o. Os alunos que aceitaram participar no estudo responderam individualmente ao question&#225;rio. Inicialmente, exclu&#237;ram-se doze question&#225;rios que continham valores omissos nos itens da INCOM. Em seguida, verificou-se a normalidade da distribui&#231;&#227;o dos dados olhando para os valores de assimetria e curtose, que revelaram ser inferiores a &#124;1.41&#124; e &#124;1.98&#124;, respetivamente. De acordo com Schumaker e Lomax (2004), estes valores s&#227;o considerados aceit&#225;veis. Al&#233;m disso, segundo Gorsuch (1983), as an&#225;lises fatoriais explorat&#243;rias e confirmat&#243;rias tendem a ser relativamente robustas contra ligeiras viola&#231;&#245;es de normalidade.</font></p>      <p><font face="Verdana" size="2"><b>Resultados</b></font></p>      <p><font face="Verdana" size="2">A fim de verificar a estrutura do instrumento em portugu&#234;s, verificou-se inicialmente a fatorabilidade da matriz de correla&#231;&#227;o entre os itens, <i>KMO</i> = .79 e teste de esfericidade de <i>Bartlett</i>, &#967;<i><sup>2</sup></i> (55, <i>n</i> = 238) = 612.77, <i>p</i> &lt; .001. Procedeu-se ent&#227;o &#224; an&#225;lise de componentes principais, com rota&#231;&#227;o <i>Oblimin</i>, uma vez que esse m&#233;todo obl&#237;quo vai de encontro ao pressuposto te&#243;rico deste construto, de que as dimens&#245;es da compara&#231;&#227;o se correlacionam e, ao mesmo tempo, com o pressuposto de que esse m&#233;todo n&#227;o impede que componentes ortogonais emerjam (cf. Pasquali, 2005).</font></p>      <p><font face="Verdana" size="2">A an&#225;lise do gr&#225;fico <i>scree plot</i> de vari&#226;ncias explicadas pelos valores pr&#243;prios permitiu concluir que uma extra&#231;&#227;o de dois componentes seria adequada (crit&#233;rio de Catell, 1966). Os dois componentes mostraram <i>eigenvalues</i> superiores a 1 (3.46 e 1.79), e explicam 47.72% da vari&#226;ncia dos dados. A correla&#231;&#227;o entre os componentes foi de .38. Por meio de uma an&#225;lise paralela de <i>eigenvalues</i> aleat&#243;rios com 1000 amostras aleat&#243;rias considerando-se o mesmo <i>n</i> e o n&#250;mero de itens deste estudo (crit&#233;rio de Horn, 1965), constatou-se que o &#250;ltimo <i>eigenvalue</i> observado maior que o simulado foi o do segundo componente (terceiro componente: <i>eigenvalue</i> observado = 1.004 e <i>eigenvalue</i> simulado = 1.23). Al&#233;m de a solu&#231;&#227;o de reten&#231;&#227;o de dois componentes ser a mais adequada, de acordo com os crit&#233;rios supracitados, essa solu&#231;&#227;o tamb&#233;m &#233; a mais indicada tendo em conta a teoria sobre o construto e os resultados de estudos pr&#233;vios com esse instrumento (e.g., Gibbons &amp; Buunk, 1999).</font></p>      <p><font face="Verdana" size="2">Na <a href="/img/revistas/psi/v30n1/30n1a01t1.jpg">Tabela 1</a> encontram-se as satura&#231;&#245;es dos itens de cada dimens&#227;o extra&#237;da. Observa-se que os itens se agrupam em duas dimens&#245;es em concord&#226;ncia com a estrutura do instrumento original de Gibbons e Buunk (1999). As dimens&#245;es s&#227;o denominadas <i>Opini&#245;es</i> (itens 1, 7, 8, 9 e 10) e <i>Aptid&#245;es</i> (itens 2, 3, 4, 5, 6 e 11). O primeiro componente, Opini&#245;es, diz respeito &#224; compara&#231;&#227;o dos sentimentos e pensamentos. O segundo componente, Aptid&#245;es, refere-se &#224; compara&#231;&#227;o das suas capacidades. Ambos os componentes apresentam coeficientes <i>alfa</i> superiores a .70, considerados &#237;ndices de consist&#234;ncia interna adequados para este instrumento (cf. Nunnally, 1978).</font></p>      <p><font face="Verdana" size="2">Adicionalmente, testou-se a estrutura por meio de uma an&#225;lise fatorial confirmat&#243;ria e comparou-se o modelo de dois fatores com a estrutura uni-fatorial. Segundo Gibbons e Buunk (1999), a INCOM pode tamb&#233;m ser aplicada como uma escala uni-fatorial, embora n&#227;o seja recomendado. Para testar a melhor adequabilidade dos dados, utilizou-se a t&#233;cnica de modelagem de equa&#231;&#245;es estruturais (<i>MES</i>), utilizando o m&#233;todo da m&#225;xima verosimilhan&#231;a. De facto, verificou-se que a solu&#231;&#227;o com dois fatores apresenta &#237;ndices de ajustamento mais adequados, <i>&#967;</i><sup>2</sup> (43, <i>n</i> = 238) = 123.36, <i>p</i> &lt; .001; <i>GFI</i> = .91; <i>CFI</i> = .86; <i>TLI</i> = .82; <i>RMSEA</i> = .08, do que a solu&#231;&#227;o uni-fatorial, <i>&#967;</i><sup>2</sup> (44, <i>n</i> = 238) = 223.47, <i>p</i> &lt; .001; <i>GFI</i> = .82; <i>CFI</i> = .68; <i>TLI</i> = .61; <i>RMSEA</i> = .13 (cf. Mar&#244;co, 2014: <i>GFI</i>, <i>CFI</i> e <i>TLI</i> &gt; .80; <i>RMSEA</i> &lt; .10). Neste sentido, para comparar os dois modelos, calculou-se o &#237;ndice de ajustamento <i>CAIC</i> proposto por Byrne (2001), segundo o qual valores menores indicam um melhor ajustamento. Os resultados indicaram que o modelo de dois fatores (<i>CAIC</i> = 169.36) &#233; mais adequado do que o modelo uni-fatorial (<i>CAIC</i> = 267.47).</font></p>       ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">Em busca de evid&#234;ncias com base nas rela&#231;&#245;es com outros construtos, testaram-se as rela&#231;&#245;es entre as dimens&#245;es da orienta&#231;&#227;o para a compara&#231;&#227;o social e outras vari&#225;veis apontadas como correlacionadas em estudos anteriores. Para esse efeito, calcularam-se os coeficientes de correla&#231;&#227;o de <i>Pearson</i>. A <a href="/img/revistas/psi/v30n1/30n1a01t2.jpg">Tabela 2</a> apresenta os coeficientes obtidos. Destacam-se as correla&#231;&#245;es positivas entre ambos os componentes da orienta&#231;&#227;o para compara&#231;&#227;o social e materialismo.</font></p>       <p><font face="Verdana" size="2">Por fim, no sentido de explorar o poder discriminativo do instrumento, realizou-se uma MANOVA sobre as componentes da INCOM comparando rapazes e raparigas. Os resultados mostraram diferen&#231;as de sexo na orienta&#231;&#227;o para a compara&#231;&#227;o social, <i>Î›</i> de <i>Wilks</i> = .89, <i>F</i>(2,235) = 15.07, <i>p</i> &lt; .001, <i>&#951;</i><sup>2</sup> = .11. Enquanto as raparigas (<i>M</i> = 5.28, <i>DP</i> = 1.02) tendem a comparar-se mais com as outras pessoas no que diz respeito aos sentimentos e pensamentos (Opini&#245;es) do que os rapazes (<i>M</i> = 4.76, <i>DP</i> = 1.17), <i>F</i>(1,236) = 13.50, <i>p</i> &lt; .001, <i>&#951;</i><sup>2 </sup>= .05, os rapazes (<i>M</i> = 5.43, <i>DP</i> = 2.55) comparam-se mais relativamente &#224;s suas capacidades (Aptid&#245;es) do que as raparigas (<i>M</i> = 4.78, <i>DP</i> = 2.23), <i>F</i>(1,236) = 26.64, <i>p</i> &lt; .001, <i>&#951;</i><sup>2 </sup>= .02.</font></p>      <p><font face="Verdana" size="2"><b>Discuss&#227;o</b></font></p>      <p><font face="Verdana" size="2">A aplica&#231;&#227;o da INCOM ao contexto de adolescentes portugueses apresentou bastantes semelhan&#231;as com a vers&#227;o original da escala (Gibbons &amp; Buunk, 1999), bem como com a adapta&#231;&#227;o e valida&#231;&#227;o para a popula&#231;&#227;o espanhola (Buunk et al., 2005). A estrutura de dois componentes do instrumento revelou-se consistente com a estrutura do instrumento original de Gibbons e Buunk (1999). Os autores da escala original reconhecem que uma solu&#231;&#227;o uni-fatorial tamb&#233;m obt&#233;m valores de ajuste aceit&#225;veis. Contudo, no presente estudo, testou-se a adequabilidade dos dados a uma solu&#231;&#227;o uni-fatorial e verificou-se que os valores de ajuste n&#227;o s&#227;o adequados. Este resultado refor&#231;a a ideia de que para medir a orienta&#231;&#227;o para a compara&#231;&#227;o social &#233; recomendado considerar ambos os fatores: Opini&#245;es e Aptid&#245;es.</font></p>      <p><font face="Verdana" size="2">Os pr&#243;prios autores da INCOM refor&#231;am que estes fatores medem as &#8220;duas faces da mesma moeda&#8221; (Gibbons &amp; Buunk, 1999, p. 137). Nesse sentido, e tal como no estudo original, obteve-se uma associa&#231;&#227;o significativa positiva entre ambas as dimens&#245;es. Deste modo, os resultados sugerem que ser&#225; recomendado em estudos futuros considerarem-se ambos os componentes, no sentido de analisar a orienta&#231;&#227;o para a compara&#231;&#227;o social em adolescentes portugueses.</font></p>      <p><font face="Verdana" size="2">Relativamente &#224; rela&#231;&#227;o entre a presente escala e restantes construtos, verificou-se uma correla&#231;&#227;o positiva, embora fraca, entre a dimens&#227;o de Opini&#245;es e a autoestima dos participantes. Este resultado &#233;, de certo modo, inesperado, uma vez que a correla&#231;&#227;o entre a autoestima e a INCOM na sua vers&#227;o original &#233;, consistentemente, negativa (Gibbons &amp; Buunk, 1999). J&#225; na amostra espanhola, esta correla&#231;&#227;o &#233; praticamente inexistente (Buunk et al., 2005). Este resultado poder&#225; ser interpretado tendo em conta duas evid&#234;ncias: a primeira, consistente com Buunk et al (2005), sugere que os indiv&#237;duos possuem um autoconceito din&#226;mico, ajust&#225;vel &#224;s diferentes situa&#231;&#245;es sociais e que, portanto, em determinados contextos podem atribuir bastante valor &#224;s opini&#245;es dos outros; a segunda, baseada nos pressupostos de Festinger (1950, 1954), prende-se com a premissa de que os indiv&#237;duos possuem uma necessidade inata de reduzir a incerteza. De facto, os indiv&#237;duos tendem a procurar as opini&#245;es dos outros em situa&#231;&#245;es de incerteza, procurando assim organizar e validar a sua realidade social. Neste sentido, n&#227;o pode ser ignorado o per&#237;odo cr&#237;tico que se vivia em Portugal na altura da recolha dos dados (Maio de 2011). O estudo decorreu num contexto de crise econ&#243;mica, com interfer&#234;ncia direta de entidades externas, promovendo incerteza em rela&#231;&#227;o ao futuro do pa&#237;s. Embora os adolescentes n&#227;o sejam, tradicionalmente, alvos preferenciais de investiga&#231;&#227;o acerca das consequ&#234;ncias da crise, estudos recentes t&#234;m demostrado que s&#227;o sens&#237;veis a estas quest&#245;es e que se preocupam com a crise (Lins &amp; Poeschl, 2015). Assim, &#233; poss&#237;vel que, neste per&#237;odo particular de incerteza, a autoestima dos adolescentes estivesse mais suscet&#237;vel &#224; opini&#227;o dos outros.</font></p>      <p><font face="Verdana" size="2">Por outro lado, importa refor&#231;ar que a adolesc&#234;ncia &#233;, em si mesma, amplamente caracterizada por incerteza (Palmonari et al., 1992). Neste importante per&#237;odo do desenvolvimento, o grupo de pares assume uma import&#226;ncia central na vida do adolescente (e.g., Newman, Lohman, &amp; Newman, 2007), assumindo o importante papel de ve&#237;culo de redu&#231;&#227;o de incerteza. Como tal, &#233; leg&#237;timo considerar que a incerteza decorrente desta fase de desenvolvimento, aliada &#224; incerteza potencialmente criada por um per&#237;odo de instabilidade despoletada pela crise, poder&#225; ter potenciado uma maior depend&#234;ncia da opini&#227;o dos outros e a consequente associa&#231;&#227;o positiva entre estas opini&#245;es e a autoestima. Contudo, estas interpreta&#231;&#245;es dever&#227;o ser diretamente testadas em estudos futuros.</font></p>      <p><font face="Verdana" size="2">Constatou-se ainda uma rela&#231;&#227;o positiva entre a dimens&#227;o de Aptid&#245;es e o <i>self</i>-comparado, mostrando que quanto mais os participantes est&#227;o orientados para se compararem com outros ao n&#237;vel das aptid&#245;es, mais acreditam que os outros t&#234;m uma vida melhor. No entanto, esta correla&#231;&#227;o &#233; relativamente baixa. Este resultado mostra que, para os adolescentes, as aptid&#245;es individuais t&#234;m pouco impacto no sucesso e na qualidade de vida dos outros, o que n&#227;o &#233; de todo surpreendente. Afinal, nesta fase da vida os adolescentes ainda s&#227;o quase totalmente dependentes da fam&#237;lia, pelo que uma grande parte da sua qualidade de vida depende dela.</font></p>      <p><font face="Verdana" size="2">Adicionalmente, obtiveram-se correla&#231;&#245;es positivas moderadas entre materialismo e ambas as dimens&#245;es da orienta&#231;&#227;o para a compara&#231;&#227;o social<a href="#2"><sup>2</sup></a><a name="top2"></a>. Estes resultados devem ser lidos &#224; luz das caracter&#237;sticas da sociedade atual. Numa sociedade marcadamente consumista, os bens materiais s&#227;o uma fonte de valida&#231;&#227;o social e de estatuto, de tal modo que certos autores falam numa sobreposi&#231;&#227;o entre o ter (i.e., os bens que se possui) e o ser (i.e., o valor atribu&#237;do ao indiv&#237;duo) (cf. Dittmar &amp; Pepper, 1994). Esta ideia torna-se, ainda, mais verdadeira junto do p&#250;blico adolescente da sociedade atual. Por exemplo, Twenge e Kasser (2013) mostraram que o materialismo nos adolescentes tem aumentado ao longo das gera&#231;&#245;es. Assim, e paralelamente, &#233; poss&#237;vel que os adolescentes portugueses estejam orientados para fazer compara&#231;&#245;es sociais com base nos bens materiais que possuem.</font></p>      <p><font face="Verdana" size="2">Por fim, identificou-se a rela&#231;&#227;o entre a impulsividade nas compras e orienta&#231;&#227;o para a compara&#231;&#227;o social. Este &#233; um resultado consistente com investiga&#231;&#245;es anteriores, que indicam uma forte rela&#231;&#227;o entre a compara&#231;&#227;o social e o comportamento de consumo (Karlsson, G&#228;rling, Dellgran, &amp; Klingander, 2005). Esta rela&#231;&#227;o &#233; explicada mediante o desejo que os indiv&#237;duos possuem em obter produtos e artigos de outras pessoas, agindo, por isso, impulsivamente (Crusius &amp; Mussweiler, 2012).</font></p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2">A resposta dos participantes posicionou-se ligeiramente acima do ponto m&#233;dio da escala. Contudo, esse valor &#233; inferior &#224; m&#233;dia obtida numa amostra de adolescentes americanos (Gibbons &amp; Buunk, 1999)<a href="#3"><sup>3</sup></a><a name="top3"></a>. Este resultado parece sugerir que existe uma maior orienta&#231;&#227;o para a compara&#231;&#227;o social nos Estados Unidos da Am&#233;rica do que em Portugal. De facto, quer a amostra holandesa (Gibbons &amp; Buunk, 1999) quer a amostra espanhola (Buunk et al., 2005) evidenciaram valores m&#233;dios superiores &#224; amostra americana na popula&#231;&#227;o adulta, sugerindo diferen&#231;as entre a cultura americana e a europeia. Assim, o presente estudo parece evidenciar que esta diferen&#231;a transcultural tem in&#237;cio j&#225; na fase da adolesc&#234;ncia. Apesar de n&#227;o existirem ainda estudos transculturais que comparem a orienta&#231;&#227;o para a compara&#231;&#227;o social em adolescentes, a investiga&#231;&#227;o neste dom&#237;nio tem demonstrado que, no contexto americano, a compara&#231;&#227;o social com os pares &#233; forte (Jones et al., 2004; Mueller et al., 2010).</font></p>      <p><font face="Verdana" size="2">Relativamente &#224;s diferen&#231;as de sexo na orienta&#231;&#227;o para a compara&#231;&#227;o social, verificou-se que rapazes e raparigas diferem quanto &#224; dimens&#227;o que mais valorizam. As raparigas valorizam mais a componente Opini&#245;es, enquanto os rapazes atribuem maior valor &#224; dimens&#227;o Aptid&#245;es. Este resultado reflete os estere&#243;tipos de g&#233;nero vigentes na sociedade ocidental, na medida em que as raparigas parecem estar mais orientadas para obter valida&#231;&#227;o com base naquilo que as outras pessoas pensam delas, enquanto os rapazes parecem obter essa valida&#231;&#227;o com base em a&#231;&#245;es e compet&#234;ncias. De facto, homens e mulheres desenvolvem uma identidade social diferente, na medida em que os homens procuram valorizar-se enquanto indiv&#237;duos &#250;nicos e independentes, e as mulheres enquanto grupo de pessoas interdependentes (Lorenzi-Cioldi, 1988).</font></p>      <p><font face="Verdana" size="2">Estas diferen&#231;as podem ter um impacto no comportamento de compra (Dittmar, 2011). Por um lado, os homens tendem a comprar objetos que refor&#231;am a sua identidade enquanto sujeito independente, e que salientam a sua autonomia e capacidade para fazer coisas por si mesmo. Por outro lado, as compras das mulheres refor&#231;am a sua identidade enquanto sujeito interdependente, e refletem a sua preocupa&#231;&#227;o com os relacionamentos interpessoais. Pode ser, portanto, por este motivo que rapazes e raparigas estejam mais predispostos para diferentes dimens&#245;es da orienta&#231;&#227;o para a compara&#231;&#227;o social.</font></p>      <p><font face="Verdana" size="2">Finalmente, a adequa&#231;&#227;o desta escala para o contexto dos adolescentes portugueses pode potenciar a investiga&#231;&#227;o e a interven&#231;&#227;o em &#225;reas do conhecimento nas quais a compara&#231;&#227;o social assume um papel preponderante, como a Psicologia e o Marketing. Por exemplo, partindo do pressuposto de que as compara&#231;&#245;es sociais frequentes est&#227;o associadas a v&#225;rios comportamentos e emo&#231;&#245;es destrutivos (e.g., White, Langer, Yariv, &amp; Welch IV, 2006; Jackson &amp; Chen, 2007) a interven&#231;&#227;o psicol&#243;gica poder&#225; beneficiar dos avan&#231;os da investiga&#231;&#227;o dedicada &#224;s compara&#231;&#245;es sociais. A associa&#231;&#227;o deste construto com a autoestima poder&#225; tamb&#233;m ser preponderante na interven&#231;&#227;o psicol&#243;gica no contexto da sa&#250;de, por exemplo, nos transtornos alimentares, que t&#234;m registado uma incid&#234;ncia alta nos adolescentes, sobretudo do sexo feminino (e.g., Castro &amp; Goldstein, 1995). Sendo tamb&#233;m a adolesc&#234;ncia normalmente marcada pelo v&#237;nculo &#224; escola, o uso de uma escala de compara&#231;&#245;es sociais pode revelar-se &#250;til no estudo do processo de aprendizagem nos adolescentes (e.g., Blanton, Buunk, Gibbons, &amp; Kuyper, 1999). Ao n&#237;vel do consumo, tendo em conta que as compara&#231;&#245;es sociais motivam o processo de compra, e com um crescente n&#250;mero de marcas a apostar no p&#250;blico-alvo dos adolescentes (e.g., Kang &amp; Park-Poaps, 2011), os instrumentos de medida das compara&#231;&#245;es sociais feitas pelos adolescentes ganham relev&#226;ncia.</font></p>      <p><font face="Verdana" size="2"><b>Considera&#231;&#245;es finais</b></font></p>      <p><font face="Verdana" size="2">Neste estudo, apresent&#225;mos evid&#234;ncias da valida&#231;&#227;o da INCOM &#8212; escala de orienta&#231;&#227;o para a compara&#231;&#227;o social &#8212; para o contexto dos adolescentes portugueses. Os resultados apontam para uma compreens&#227;o do conceito de orienta&#231;&#227;o para a compara&#231;&#227;o social baseado nas dimens&#245;es de Opini&#245;es e Aptid&#245;es, tal como proposto na escala original. Apesar da robustez dos dados, a utiliza&#231;&#227;o desta escala junto da popula&#231;&#227;o adolescente portuguesa deve ser encarada com a devida cautela, uma vez que n&#227;o foi utilizado neste estudo uma amostra representativa.</font></p>      <p><font face="Verdana" size="2">De facto, a amostra deste estudo prov&#233;m de uma escola p&#250;blica de um grande centro urbano, n&#227;o contemplando, assim, jovens adolescentes provenientes de meios sociais mais favorecidos e regi&#245;es geogr&#225;ficas menos desenvolvidas. Al&#233;m disso, e dado que a evolu&#231;&#227;o tecnol&#243;gica das &#250;ltimas d&#233;cadas produz fortes mudan&#231;as sociais e psicol&#243;gicas que se manifestam, n&#227;o s&#243;, mas tamb&#233;m, nos adolescentes, &#233; poss&#237;vel que o conceito bidimensional de orienta&#231;&#227;o para a compara&#231;&#227;o social fique desatualizado em rela&#231;&#227;o ao originalmente proposto.</font></p>      <p><font face="Verdana" size="2">Apesar de a adolesc&#234;ncia ser um per&#237;odo marcado por uma maior tend&#234;ncia para a manifesta&#231;&#227;o de processos de compara&#231;&#227;o social, conforme evidenciado anteriormente, este &#233; um conceito transversal a todas as faixas et&#225;rias. Assim, sugerimos que estudos futuros se foquem na adapta&#231;&#227;o e valida&#231;&#227;o desta escala para outros p&#250;blicos-alvo. Futuras investiga&#231;&#245;es devem ainda incidir no melhor esclarecimento da validade discriminante desta escala. Neste estudo relacionou-se a INCOM com a autoestima, <i>self</i>-comparado e materialismo, entretanto, algumas correla&#231;&#245;es encontradas podem ser consideradas fracas. Por outro lado, outros construtos que podem estar associados com a compara&#231;&#227;o social n&#227;o foram considerados neste estudo (e.g., perce&#231;&#227;o da autoimagem corporal, ansiedade, depress&#227;o). Por fim, o motivo pelo qual rapazes e raparigas divergem face &#224; import&#226;ncia atribu&#237;da &#224;s dimens&#245;es da orienta&#231;&#227;o para a compara&#231;&#227;o social merece tamb&#233;m aten&#231;&#227;o em investiga&#231;&#245;es futuras.</font></p>      <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Refer&#234;ncias</b></font></p>      ]]></body>
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Psychometric study of the adolescent social comparison scale-revised. <i>Revista de Sa&#250;de P&#250;blica</i>, <i>48</i> (n.esp), 190-281.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=470504&pid=S0874-2049201600010000100085&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      <p>&nbsp;</p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><i>Historial do artigo</i></font></p>      <p><font face="Verdana" size="2">Recebido: 21/07/2015</font></p>      <p><font face="Verdana" size="2">Aceite: 09/05/2016</font></p>      <p><font face="Verdana" size="2">Publicado: 06/2016</font></p>      <p>&nbsp;</p>     <p><sup>*</sup><a href="#topc0">Autor para correspond&#234;ncia:</a><a name="c0"></a></font></font></p>      <p><font face="Verdana" size="2">PUC-Rio, Departamento de Psicologia, Rua Marqu&#234;s de S&#227;o Vicente, 225, G&#225;vea, Rio de Janeiro, 22543-900. E-mail: <a href="mailto:samuellins@puc-rio.br">samuellins@puc-rio.br</a>.</font></p>      <p>&nbsp;</p>     <p><font face="Verdana" size="2"><b>Notas</b></font>      <p><font face="Verdana" size="2"><a href="#top2"><sup>2</sup></a><a name="2"></a>Cohen (1988) classifica correla&#231;&#245;es como: .10 a .29 (fraca); .30 a .49 (moderada); .50 a 1 (forte).</font></p>      ]]></body>
<body><![CDATA[<p><font face="Verdana" size="2"><a href="#top3"><sup>3</sup></a><a name="3"></a>No estudo com adolescentes americanos foi utilizada a escala original de 5 pontos. Ponderando para uma escala de resposta com 7 pontos, a m&#233;dia das suas respostas seria de 5.10, e portanto superior &#224; m&#233;dia encontrada no presente estudo.</font></p>      <p>&nbsp;</p>          <p><font face="Verdana" size="2"><a href="#topa1">Anexo 1</a><a name="a1"></a></font></p>      <p><font face="Verdana" size="2"><b>Escala de Orienta&#231;&#227;o para a Compara&#231;&#227;o Social (INCOM) para o contexto de adolescentes portugueses</b></font></p>      <p><font face="Verdana" size="2">A maioria das pessoas compara-se, de vez em quando, com as outras. Elas podem comparar os seus sentimentos, opini&#245;es, capacidades e/ou a sua situa&#231;&#227;o com as das outras. N&#227;o existe particularmente nada de bom ou de mau neste tipo de compara&#231;&#245;es e algumas pessoas fazem-no com mais frequ&#234;ncia do que outras.</font></p>      <p><font face="Verdana" size="2">As perguntas a seguir tentam determinar com que frequ&#234;ncia te comparas com os outros e como te sentes ao realizar essas compara&#231;&#245;es. Para isso &#233; necess&#225;rio, por favor, que marques com um 'x' a op&#231;&#227;o da resposta escolhida em cada item.</font></p>      <p>&nbsp;</p> <a href="/img/revistas/psi/v30n1/30n1a01a1.jpg">Imagem 1</a>     
<p>&nbsp;</p>       ]]></body><back>
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