The Weigl Color-Form Sorting Test as an index of cortical function.

Evaluated the Weigl Color-Form Sorting test as an index of cortical function and dysfunction by observing the effects of several factors known to influence brain function (age and education) and to accompany dysfunction (Verbal IQ, Bender-Gestalt recall and Similarities). In Experiment 1 the Ss were 46 psychiatric patients, 20 males and 26 females. One-half the Ss could shift on the Weigl and one-half could not. No sex differences were associated with ability to shift. All t tests were significant, which shows that all the study variables either affected or accompanied ability to shift. Experiment 2 used 71 psychiatric patients, 27 males and 44 females. All the findings of Experiment 1 were replicated.