Acceso usuarios
Luis Miguel Escurra Mayaute, Ana Esther Delgado Vásquez, Andrés Aparcana Carrasco
Se realizó el estudio de las principales características de la forma corta del Test de Desarrollo Visomotor de Beery, desarrollada por Salazar y Delgado en 1985, bajo los supuestos del modelo de Rasch.Se aplicó la prueba a 1210 sujetos de Lima Metropolitana, (49.9% mujeres y 50.1% hombres) pertenecientes a centros educativos estatales y noestatales, de 1°, 2° y 3° grado de primaria y que residen en zonas urbanas y urbanas-marginales.Los resultados confirman que la prueba conformada por 12 ítems, al ser analizados bajo el modelo probabilístico de Rasch obtienen valores que no se adecuan al modelo, en tanto que al eliminar 6 ítems se conforma una escala que cumple con todos los supuestos del modelo. Se computaron los valores de los ítems-parámetros y los persona-parámetros, así como los análisis estadísticos básicos para evaluar la bondad de ajuste al modelo.
Using the Rasch Model a study about the principie characteristics of the Short Fonn of Beery Visual Motor Integration Test developed by Salazar and Delgado (1985) was carried out. The test was administered to 1210 students (49,9% girls and 50,1% boys) corning from public and privates schools of Lima from 1st, 2nd and 3rd grades. The results show that the Short Fonn of the VMI constituted by 12 items, did not fit the Rasch model. However, when six items were eliminated a scale that fitted the model was constituted. Scores of the item-paramenters and the person-paramenters, as well as basic statistic analysis to evaluate the adjustment of the model, were computed. The validity of the model was cornpared according to the differente demographic characteristics, verifying the generability and stability of the scale. Additionaly the relation between the Rasch Scales and the Short Form was evaluated.
