Validity, reliability and standards in the questionnaire on physical self-concept in university students from metropolitan Trujillo

Abstract

Due to the lack of an instrument that explores the self-concept from the multidimensional approach, rises the need to adapt instruments developed in other realities. This research of technological type was intended to determine the validity, reliability and to elaborate norms for the Physical Self-concept Questionnaire in university students from the city of Trujillo, Perú. The stratified probability sample was 1,042 university students of both sexes, aged 17 to 26, from cycle I to XII, enrolled in the professional academic schools of agronomy, accounting, law, economics, early childhood education, nursing, civil engineering, statistical engineering, materials engineering, mining engineering, mechatronics engineering, nutrition, psychology and social work from the universities in Region La Libertad. The results showed that correlations in the criterion validity were highly significant, positive and intermediate level between the dimensions of physical self concept and the Scale of Subjective Psychological Welfare; the confirmatory factor analysis reported an adjustment index greater than 90; the goodness of fit test confirmed the factorial structure of the questionnaire and the data was fit to the proposed theoretical model; the discrimination levels were good and very good in the item-test construct validity; and the inter-scale correlations were highly significant, positive, medium and high grade; the internal consistency by Cronbach’s Alfa reported scores ranging from .676 to .787 for the dimensions; regarding to stability, the correlation indexes were highly significant, positive and high grade. Percentile general norms and specific norms were drawn up by gender.