Validity, reliability and percentiles to assess the physical self-concept of young university students in Peru

Rossana Gomez-Campos, José Fuentes López, Ángel Mamani Ramos, Mary Limachi Flores, Dony Mamani Velásquez, Evandro Lázari, Jaime Pacheco-Carrillo, Luis Urzua Alul, Marco CossioBolaños

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Abstract

© 2018 Sociedad Espanola de Nutricion Comunitaria. All rights reserved. Background: To verify the validity and reliability of the physical self-concept scale (CFA) and to propose references by means of percentiles. Methods: 1937 university students (1064 men and 873 women) from the city of Puno, Peru, were studied. The weight and height were evaluated and the Body Mass Index (BMI) was calculated. The survey technique was used applying an ACF scale of 30 questions. Validation was carried out through Confirmatory Factor Analysis (CF-A). The reliability of verified by means of Alpha de Cronbach. Percentiles were generated by means of the LMS method. Results: The CF-A showed saturations higher than 0.41 for 29 questions. In the model generated with 29 questions, the percentage explanation of the variance was 42%, the KMO was 0.911 (X2 = 15578.883, gl = 435, p <0.001). Cronbach's alpha showed values above 0.75. The proposed percentiles allow categorizing the ACF into three levels: <p15 (low ACF), p15 to p85 (moderate ACF) and> p85 (high ACF). Conclusions: The ACF scale is valid and reliable for university students. The percentiles are an alternative to identify, classify and categorize the ACF levels.
Original languageAmerican English
JournalRevista Espanola de Nutricion Comunitaria
StatePublished - 1 Jan 2018
Externally publishedYes

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    Gomez-Campos, R., López, J. F., Ramos, Á. M., Flores, M. L., Velásquez, D. M., Lázari, E., Pacheco-Carrillo, J., Alul, L. U., & CossioBolaños, M. (2018). Validity, reliability and percentiles to assess the physical self-concept of young university students in Peru. Revista Espanola de Nutricion Comunitaria.