Studies in the Expanded Word Association Test: I. Effects of Cerebral Dysfunction

Summary

The effects of cerebral dysfunction upon responses to the Expanded Word Association Test were studied among psychiatric patients. Psychiatric patients suffering from impairments in cerebral functioning showed significantly (p < .001) more blocking, multi-words and repetitions, irrespective of the type of stimulus word, than psychiatric patients judged free of such impairment. By weighing these variables with discriminant function coeficients it was possible to effectively discriminate between the groups, with only four misclassifications out of ninety patients. The results were discussed in relation to a previous experiment where similar findings had been obtained, and to the use of the test as a clinical tool.