RESUMEN
El objetivo de este trabajo fue analizar las propiedades psicométricas de los módulos semántico y pragmático de la Batería de Lenguaje Objetiva y Criterial (BLOC). El alfa de Cronbach en el módulo semántico fue 0,84 (n= 259) y 0,91 para el módulo pragmático (n= 142). Con análisis de componentes principales categóricos (CAPCAT) se obtuvieron soluciones unidimensionales, que explican un 41,65% y un 41,77% de la variabilidad, respectivamente. Por sexo no encontramos diferencias, y por nivel socioeconómico los participantes de nivel bajo presentaron un rendimiento menor sólo en el módulo semántico. Por edad, las diferencias fueron menores, ya que en los módulos se generaron 3 y 4 grupos homogéneos, pero con sobreposición entre las distintas edades. La poca discriminación probablemente se explique por el bajo rendimiento de la muestra chilena. Comparadas con España, las medianas del modulo semántico están por debajo del rendimiento por debajo de la norma, y las del módulo pragmático están por encima
The aim of this work was to analyse the psychometric properties of the semantics and pragmatics modules of the Objective and Criterial Language Battery (BLOC). For the semantics module (n= 259), Cronbachs alpha was 0.84; for the pragmatics module (n= 142), Cronbachs alpha was 0.91. A Categoric Principal Components Analysis (CAPCAT), produced unidimentional solutions, explaining 41.65% of the variance in the semantics module, and 41.77% in the pragmatics module. We did not find differences in performance by sex. By socio-economic status, lower status children performed worse than those of middle and higher status, but only in the semantics module. Differences by age were small, with both modules producing between 3 and 4 homogeneous groups with substantial overlap. Lack of discrimination is probably related to reduced variability due to low performance in the Chilean samples. Compared to Spain, medians in the semantics module were lower than expected (though medians in the pragmatics module were slightly higher)
Asunto(s)
Masculino , Femenino , Niño , Humanos , Trastornos del Lenguaje/diagnóstico , Pruebas del Lenguaje/estadística & datos numéricos , Semántica , Factores Socioeconómicos , Factores Sexuales , Factores de Edad , Psicometría/instrumentaciónRESUMEN
The aim of this work was to analyse the psychometric properties of the semantics and pragmatics modules of the Objective and Criterial Language Battery (BLOC). For the semantics module (n= 259), Cronbach's alpha was 0.84; for the pragmatics module (n= 142), Cronbach's alpha was 0.91. A Categoric Principal Components Analysis (CAPCAT), produced unidimentional solutions, explaining 41.65% of the variance in the semantics module, and 41.77% in the pragmatics module. We did not find differences in performance by sex. By socio-economic status, lower status children performed worse than those of middle and higher status, but only in the semantics module. Differences by age were small, with both modules producing between 3 and 4 homogeneous groups with substantial overlap. Lack of discrimination is probably related to reduced variability due to low performance in the Chilean samples. Compared to Spain, medians in the semantics module were lower than expected (though medians in the pragmatics module were slightly higher).