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2006:
Dishman Rod K; Hales Derek P; Almeida Maria Joao; Pfeiffer Karin A; Dowda Marsha; Pate Russell R
Factorial validity and invariance of the Physical Self-Description Questionnaire among black and white adolescent girls.
Ethnicity & disease 2006;
16(
2):.
Meaningful comparison of physical self-concept among racial or ethnic groups requires that the measurement instruments used have equivalent measurement properties. We tested the factorial validity and invariance of the Physical Self-Description Questionnaire (PSDQ) among Black (n = 658) and White (n = 479) adolescent girls in the 12th grade. Construct validity was examined by estimating correlations between PSDQ subscales and external criteria (physical activity, physical fitness, body mass index [BMI], and participation in sports). The hypothesized 11-factor model demonstrated adequate overall fit in both groups. Comparison of nested models supported the between-group invariance of the overall factor structure. Convergent and discriminant evidence for construct validity was supported by the pattern of correlations with the external criteria. The results indicate that a meaningful comparison of PSDQ scores can be made between Black and White girls in the 12th grade and that valid inferences from PSDQ scores can be made about specific aspects of physical self-concept. Despite lower levels of physical activity, sport participation, and fitness and higher BMI, Black girls had similar self-esteem and higher physical self-concept and perceived appearance compared to White girls.
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