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Rev. esp. nutr. comunitaria ; 24(2): 0-0, abr.-jun. 2018. tab
Article in Spanish | IBECS | ID: ibc-178348

ABSTRACT

Fundamentos: Verificar la validez y confiabilidad de la escala de auto-concepto físico (ACF) y proponer referencias por medio de percentiles. Métodos: Se estudió 1.937 jóvenes universitarios (1.064 hombres y 873 mujeres) de la ciudad de Puno, Perú. Se evaluó el peso y estatura y se calculó el índice de Masa Corporal (IMC) de los universitarios. Se utilizó la técnica de la encuesta aplicando una escala de ACF de 30 preguntas. La validación se efectuó por medio de Análisis Factorial Confirmatorio (A-FC). La confiabilidad de verificó por medio de Alpha de Cronbach. Se generaron percentiles por medio del método LMS. Resultados: El A-FC arrojó saturaciones superiores a 0,41 para 29 preguntas. En el modelo generado con 29 preguntas, el porcentaje de explicación de la varianza fue del 42%, el KMO fue de 0,911 (X2= 15578.883, gl= 435, p<0,001). El alpha de Cronbach mostró valores superiores a 0,75. Los percentiles propuestos permiten categorizar el ACF en tres niveles: p85 (alto ACF).Conclusiones: La escala de ACF es válida y confiable para jóvenes universitarios. Los percentiles son una alternativa para identificar, clasificar y categorizar los niveles de ACF


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: 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


Subject(s)
Humans , Male , Female , Adolescent , Young Adult , Adult , Self Concept , Body Image , Overweight/epidemiology , Obesity/epidemiology , Self Report , Reproducibility of Results , Students/statistics & numerical data , Body Weights and Measures/statistics & numerical data , Peru/epidemiology , Cross-Sectional Studies
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