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Considerando-se a importância do autoconceito no bem-estar dos adolescentes, bem como a necessidade de escalas confiáveis que permitam avaliá-lo, o presente estudo tem como objetivos verificar as propriedades psicométricas da Escala de Autoconceito Multidimensional, sua estrutura e consistência interna em uma amostra de adolescentes brasileiros e verificar a invariância fatorial da escala considerando-se o sexo dos adolescentes. Participaram deste estudo 1.588 adolescentes com idades entre 12 e 16 anos, sendo 65,5% meninas. Os resultados indicam que a versão de quatro dimensões (acadêmica, familiar, física e social) e 20 itens da Escala de Autoconceito Multidimensional apresenta, no geral, consistência interna e índices de ajuste adequados em análise fatorial confirmatória para a amostra. Verifica-se também invariância fatorial entre meninos e meninas por meio de análise fatorial confirmatória multigrupo. Considering the importance of self-concept in the well-being of adolescents, as well as the need for reliable scales that allow its evaluation, the objectives of the present study are to verify the psychometric properties of the Multidimensional Self-Concept Scale—its structure and internal consistency – in a sample of Brazilian adolescents, and to assess the scalar invariance of the scale considering the adolescents' gender. The study included 1,588 adolescents between 12 and 16 years of age, with 65.5% being female. The results indicate that the four-dimensional (academic, family, social and physical), 20-item version of the Multidimensional Self-Concept Scale presents appropriate reliability and fit indices when performing confirmatory factor analysis for the sample. There is also factorial invariance between boys and girls tested with multi-group confirmatory factor analysis. Teniendo en cuenta la importancia del auto-concepto en el bienestar de los adolescentes, así como la necesidad de escalas fiables que permitan evaluarlo, los objetivos del presente estudio son verificar las propiedades psicométricas de la Escala Multidimensional de Autoconcepto, su estructura y consistencia interna en una muestra de adolescentes brasileños y evaluar la invariancia factorial de la escala teniendo en cuenta el género de los adolescentes. El estudio incluyó a 1.588 adolescentes con edades entre 12 y 16 años y 65,5% niñas. Los resultados indican que la versión de cuatro dimensiones (académica, familiar, social y física) y 20 ítems de la Escala de Autoconcepto Multidimensional presenta, en general, índices de ajuste y confiabilidad apropiados cuando se realiza el análisis factorial confirmatorio para la muestra. También se observa invariancia factorial entre los niños y las niñas a través del análisis factorial confirmatorio multigrupo.

Adolescents’ participation in all the matters that affect them has great importance for their life and well-being. Just a few studies explore adolescents’ social participation and even less address the link between adolescents’ participation and their subjective well-being (SWB). This article explores adolescents’ perceptions on their participation in family, school, and community and its’ relationship with their SWB measured by four psychometric scales: OLS, SLSS5, BMSLSS and PWI-SC5. Data have been collected within International Survey of Children’s Well-Being-ISCWeB (the fi rst international extended pilot 2011-2012) from four samples of adolescents (M=12,1, SD=0,68): Brazil, Chile, Romania and Spain. Descriptive and exploratory analyzes were performed using independent sample ‘t’ test in order to examine mean scores of the SWB indicators by gender in the four countries and Pearson Chi-Square to test gender differences between the group of adolescents who perceive they are listened by adults and the group with nonparticipation. The relationship between adolescents’ perception on participation in family, school and community, gender and their SWB was explored by analysis of variance (ANOVA). The results indicated that greater perceived participation of adolescents aged 12 is signifi cantly associated with higher subjective well-being. Variations between countries in SWB in the way that adolescent’s perceive their participation and also between boys and girls were found. The results are discussed with focus on the implementation of children’s rights and programs which enables adolescents’ participation in the contexts of their life and also on the need to improve policies for children and adolescents.

Esta tese tem como objetivos verificar as propriedades psicométricas dos instrumentos de bem-estar: Personal Wellbeing Index (PWI), Satisfaction With Life Scale (SWLS), Brief Multidimensional Students’ Life Satisfaction Scale (BMSLSS) e Core Affects Scale (CAS); apresentar o bem-estar nos grupos de pais e filhos adolescentes; e verificar a relação entre o bem-estar subjetivo de pais e seus filhos adolescentes a partir de diferentes medidas de avaliação. Foram realizados três estudos, com 543 adolescentes com idades entre 12 e 16 anos (68,3% meninas) e seus respectivos pais, com idade média aproximada de 44 anos. Os resultados apontam que o PWI e as escalas SWLS, BMSLSS e CAS apresentam, no geral, bons índices de ajuste quando da realização da análise fatorial (exploratória e confirmatória) para a amostra de adolescentes e para a de pais. Verificam-se diferenças significativas entre as médias de diferentes domínios de bem-estar, sendo as médias mais altas para os adolescentes do que para os pais. Com relação às diferenças por sexo, para as medidas de bem-estar globais observa-se que tanto as meninas como as mães apresentam médias mais baixas do que os meninos e os pais. Não foram encontradas diferenças significativas por idade para os adolescentes e para os pais, apesar de haver uma diminuição nas médias de diversas medidas para os adolescentes com o aumento dos 12 aos 16 anos. Houve diferenças para classe social, sendo as médias de bem-estar mais baixas para os participantes de classe média baixa. Especificamente, há diferenças entre a interação de classe social e sexo, e as participantes do sexo feminino de classe média baixa apresentam as menores médias de bem-estar. Finalmente, a relação entre o bem-estar de pais e filhos foi analisada, chegando-se a 5 itens que apresentam correlação de 0,41 entre pais e filhos: a satisfação com a família, com o lugar onde vive, com as condições onde vive, com o nível de vida e com a segurança, formando uma dimensão denominada de satisfação com o microssistema. Os resultados para os modelos de interdependência ator-parceiro (APIM) apresentam efeitos significativos entre a satisfação e a felicidade global com a vida dos pais e o bem-estar dos filhos adolescentes, apesar de pequenos. This thesis aims to examine the psychometric properties of the well-being instruments: Personal Wellbeing Index (PWI), Satisfaction With Life Scale (SWLS), Brief Multidimensional Students’ Life Satisfaction Scale (BMSLSS) and Core Affects Scale (CAS); to present the well-being in the groups of parents and children, and to verify the relation of the subjective well-being of parents and their adolescent children using different assessment measures. Three studies were conducted with 543 adolescents aged between 12 and 16 years (68.3% girls) and their respective parents with an average age of approximately 44 years. The main results show that the scales SWLS, PWI, BMSLSS and CAS have good overall fit indices when performing factor analysis (exploratory and confirmatory) for the sample of adolescents and parents. There are significant differences between the averages of different well-being domains and the averages are higher for teenagers than for parents mostly. With respect to gender differences, for some of the measures of well-being it is observed that girls as mothers present lower average than boys and parents. Considering age, in general there were no significant differences found for adolescents and parents, despite a decrease in the mean for several measures for adolescents when increasing age. There were differences in social class, and the means of well-being are lower for participants from lower middle class. Specifically, there are differences between the interaction of social class and gender, and female participants from lower middle class have lower average well-being. Finally, the relationship between the well-being of parents and children was analyzed, reaching up to 5 items that show a correlation of 0.41 between parents and children: satisfaction with family, where you live, with the conditions of where you live, with the standard of living and security, forming a dimension called satisfaction with the microsystem. The results for the actor-partner interdependence model (APIM) show significant effects between the overall satisfaction and happiness with life of parents and the well-being of adolescent children, though small.