El enfoque meta-analítico de generalización de la fiabilidad

  1. Sánchez Meca, Julio
  2. López Pina, José Antonio
Revista:
Acción psicológica

ISSN: 1578-908X

Año de publicación: 2008

Título del ejemplar: Innovaciones metodológicas en la evaluación psicológica : perspectivas de futuro

Volumen: 5

Número: 2

Páginas: 37-64

Tipo: Artículo

DOI: 10.5944/AP.5.2.457 DIALNET GOOGLE SCHOLAR

Otras publicaciones en: Acción psicológica

Resumen

Frases del tipo «la fiabilidad del test es 0.80» son incorrectas. Es más apropiado decir «la fiabilidad de las puntuaciones del test en una determinada aplicación del mismo es 0.80». El enfoque meta-analítico de generalización de la fiabilidad pretende demostrar que la fiabilidad es una propiedad empírica que varía de una aplicación a otra del test. Este nuevo enfoque meta-analítico está contribuyendo a concienciar a los investigadores sobre la importancia de aportar estimaciones de la fiabilidad con los propios datos y evitar inducciones de la fiabilidad. Se presentan las fases en las que se lleva a cabo un estudio de generalización de la fiabilidad: (a) formulación del problema, (b) búsqueda de los estudios, (c) codificación de los estudios, (d) análisis estadístico e interpretación y (e) publicación. Se presenta una visión actualizada de los problemas estadísticos de este enfoque: (a) transformar versus no transformar los coeficientes, (b) ponderar versus no ponderar los coeficientes, (c) cómo tratar la dependencia estadística entre los coeficientes y (d) cuál es el modelo estadístico más apropiado (efectos fijos, efectos aleatorios, efectos mixtos).

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