Abstract:
:The Tripartite Influence Scale (TIS) is used to assess the influence of social and family factors on individuals' body image. However, little evidence has been presented on the validity of the TIS construct. The study aimed to estimate the psychometric indicators in TIS and identify the degree of influence of the media, parents, and peers on body image in university students, considering different characteristics. University students of both sexes participated. The psychometric indicators in TIS were assessed for each sex using confirmatory factor analysis. Mean scores were calculated for each TIS factor. Prevalence rates for degree of influence were presented. A multivariate regression model was built to verify the relationship between target characteristics and TIS factor scores. The sample included 791 university students (63.2% women) 18 to 40 years of age. TIS did not initially display a good fit to the samples and was therefore refined. After refinement, the scale showed adequate validity and reliability for women and men. Significant differences were observed in the mean scores between women and men, and in the prevalence rates the majority of the students were in the low category. Work, consumption of food supplements for body changes, age, body mass index, self-rated diet, and level of physical activity were significantly related to TIS factors. Women were generally more influenced than men by the media and peers. Characteristics identified as related to TIS can be relevant for inclusion in clinical and research protocols. :A Escala de Influência dos Três Fatores (TIS) é utilizada para avaliar a influência de aspectos sociais e familiares na aparência corporal dos indivíduos. Contudo, poucos indícios de validade de construto da TIS são apresentados. O objetivo do estudo foi estimar os indicadores psicométricos da TIS e identificar o grau de influência da mídia, pais e amigos na aparência corporal de universitários considerando diferentes características. Universitários de ambos os sexos participaram. Os indicadores psicométricos da TIS foram avaliados para cada sexo utilizando análise fatorial confirmatória. Os escores médios de cada fator da TIS foram calculados. As prevalências do grau de influência foram apresentadas. Um modelo de regressão múltiplo multivariado foi construído para verificar a relação de características de interesse com os escores dos fatores da TIS. Participaram 791 universitários (63,2% mulheres) de 18 a 40 anos. A TIS não apresentou bom ajustamento às amostras e foi refinada. Após refinamento, observou-se adequada validade e confiabilidade para mulheres e homens. Verificaram-se diferenças significativas entre os escores médios de mulheres e homens, e, nas prevalências, a maioria dos estudantes esteve na categoria baixa. A atividade laboral, o consumo de suplementos alimentares para alterar o corpo, a idade, o índice de massa corporal, a autoavaliação da alimentação e o nível de atividade física se relacionaram significativamente com os fatores da TIS. Em geral, as mulheres foram mais influenciadas pela mídia e pelos amigos do que os homens. As características amostrais identificadas como relacionadas aos fatores da TIS podem ser relevantes para inclusão em protocolos clínicos e de pesquisa. :La Escala de Influencia de los Tres Factores (TIS) se utiliza para evaluar la influencia de aspectos sociales y familiares en la apariencia corporal de los individuos. A pesar de ello, en el constructo de la TIS se presentan pocos indicios de validez. El objetivo de este estudio fue estimar los indicadores psicométricos de la TIS e identificar el grado de influencia de los medios de comunicación, padres y amigos, en la apariencia corporal de universitarios, considerando diferentes características. Participaron universitarios de ambos sexos. Los indicadores psicométricos de la TIS se evaluaron para cada sexo, utilizando un análisis factorial confirmatorio. Se calcularon las puntuaciones medias de cada factor de la TIS. Se presentaron las prevalencias del grado de influencia. Se construyó un modelo de regresión múltiple multivariado para verificar la relación de características de interés con puntuaciones de los factores de la TIS. Participaron 791 universitarios (63,2% mujeres) de 18 a 40 años. La TIS no presentó un buen ajuste a las muestras y fue depurada. Tras la depuración se observó una validez adecuada y confiabilidad para mujeres y hombres. Se verificaron diferencias significativas entre las puntuaciones medias de mujeres y hombres, asimismo, en las prevalencias la mayoría de los estudiantes estuvo en la categoría baja. La actividad laboral, consumo de suplementos alimenticios para alterar el cuerpo, edad, índice de masa corporal, autoevaluación de la alimentación y nivel de actividad física se relacionaron significativamente con los factores de la TIS. En general, las mujeres estuvieron más influenciadas por los medios y por los amigos que los hombres. Las características de las muestras identificadas y relacionadas con los factores de la TIS pueden ser relevantes para su inclusión en protocolos clínicos y de investigación.
journal_name
Cad Saude Publicajournal_title
Cadernos de saude publicaauthors
Silva WRD,Marôco J,Campos JADBdoi
10.1590/0102-311X00179318subject
Has Abstractpub_date
2019-04-08 00:00:00pages
e00179318issue
3eissn
0102-311Xissn
1678-4464pii
S0102-311X2019000304001journal_volume
35pub_type
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