Propiedades psicométricas de un instrumento para medir creencias en torno a la obesidad en una muestra mexicana.

Propiedades psicométricas de un instrumento para medir creencias en torno a la obesidad en una muestra mexicana.

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Marcoantonio Villanueva Bustamante
Sofía Rivera Aragón
Abstract

Objectives. Obesity has become a public health problem in Mexico. Therefore, identifying the factors that favor its development and prevalence is an essential activity. In this sense, models from the psychological discipline propose that by approaching the beliefs associated with a phenomenon, it is possible to understand the causes of these beliefs. In this sense, the purpose of the present study is the adaptation and validation of the scale of beliefs about obese people (BAOP) for its application in the Mexican population. Methodology. A culturally relevant validation procedure was followed. First, the English items were translated and adapted into Spanish through a translation-translation process. The second step was to assess the relevance of these items through the evaluation of expert judges. Finally, the items were subjected to an exploratory factor analysis to determine the psychometric properties of the instrument. Results. Inter-judge agreement was assessed using Aiken's V. Based on the results, all items were found to be relevant and retained in the scale. Factor analysis revealed a single-factor structure consisting of six items, which accounted for 64% of the variance and had an adequate internal consistency index (ω = .880). Conclusion. In assessing beliefs about the controllability of weight, the scale obtained is consistent with the original proposal. This scale has adequate psychometric properties and is easy to administer due to its length and response format.


Keywords. Beliefs, BAOP, Overweight, Obesity, Cultural validation, Controllability.


 

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