أثر طريقة التدوير المتعامد و حجم العينة في التحليل العاملي على عدد العوامل و نسبة التباين المفسر

الملخص EN

The study aimed at investigating the effect of orthogonal rotation and sample size of factor analysis on the number of factors and the proportion of explained variance, Three methods of orthogonal rotation were used: the Varimax, the Quartimax and the Equamax method.

Three samples were used (200),( 400) and (600)for generated data using (Win Gen) to a scale consisted of (40) items.

The results showed that the number of factors does not differ according to the size of the sample and method of rotation, and that the percentage of interpreted variance varies according to sample size and not differ to method of rotation, The results showed that there are differences in communality due to the rotation method in favor of Varimax, and there are differences in communality due to the sample size in favor of the sample of(600).The results showed that there are difference between saturated items and the factors according to the rotation and sample size.