Abstract

The pictorial scale of Physical Self-Concept in Children (P-PSC-C) is a relatively new instrument for investigating physical self-concept in childhood. The current study aims to examine the validity and reliability of the Spanish version of the P-PSC-C, and also to analyse the validity according to the children’s age. A sample of 365 primary school age (M = 9.21, SD = 1.92) students participated; divided in two groups, those aged 9 or younger and those 10-11 years old. Surveys were used to assess perceived physical concept individually. Confirmatory factor analysis (CFA) with diagonally weighted least square estimator specifically designed for ordinal data and a scaled test statistic was conducted. Ordinal alpha using a polychoric correlation matrix and Kendall’s τ were used to analyse reliability and correlation between items, respectively. The results of the CFA showed a one-dimensional excellent fit for the whole sample. According to the age groups, the CFA revealed that the item assessing flexibility had a low factor loading for older children ( = .11). Weak invariance was shown for gender. Item statistics and reliability values were otherwise good. This study shows a high potential for the pictorial scale to be suitable for the given age groups in measuring physical self-concept.

Resumen

La escala pictográfica de Autoconcepto Físico en niños y niñas es un instrumento novedoso para investigar el autoconcepto físico en la niñez. Este estudio pretende  analizar la validez y fiabilidad de la versión española de la escala pictográfica de Autoconcepto Físico en niños y niñas, también según su edad. En el estudio participó una muestra de 365 niños y niñas (M = 9.21, D.T. = 1.92) de centros educativos de infantil y primaria que fueron divididos en dos grupos, aquellos de 9 años o menores y los de 10-11 años. Se realizaron entrevistas individuales para medir el autoconcepto físico. Se aplicaron pruebas de análisis factorial confirmatorio (AFC) con estimaciones específicas ponderadas de mínimos cuadrados diseñado específicamente para datos ordinales. Para analizar la fiabilidad y correlación entre ítems, se utilizó una matriz policórica de correlación y la τ de Kendall, respectivamente. Los resultados del AFC para toda la muestra de estudio mostraron un ajuste unidimensional excelente. Respecto a la validez según los grupos de edad, los AFC mostraron que el ítem de flexibilidad tuvo una carga factorial baja e insuficiente en los niños de mayor edad ( = .11). Según el sexo, la invarianza fue débil. Los datos estadísticos de los ítems y la fiabilidad fueron buenos. Este estudio muestra un alto potencial para la utilización de la escala pictográfica para medir el autoconcepto físico en los grupos de edad analizados. La escala pictográfica de autoconcepto físico es relativamente nueva para estudiar el autoconcepto físico en la niñez.

https://doi.org/10.5232/ricyde2019.05507

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