ERIC Number: ED272786
Record Type: RIE
Publication Date: 1986-Jun
Reference Count: 0
The Use of the Rorschach to Identify Schizophrenia: A Review of the Literature.
Entwistle, David Nelson
Rorschach's use of inkblots as a diagnostic tool has been quite useful in aiding in the diagnosis of schizophrenia. In developing his Comprehensive System for the Rorschach, John Exner (1974) included an index designed to identify schizophrenic subjects. The Schizophrenia Index has evolved to reflect ongoing research. In its current state, the five criteria of the Schizophrenia Index include eight variables that are postulated to relate to two areas of schizophrenic disturbance: disordered thinking and inaccurate perception. Both of these have been well supported by empirical data. The accuracy of the Schizophrenia Index is well documented, having a hit rate of approximately 80% with false positives averaging slightly over 6%. The Index could be improved, especially by limiting false positives by the affective disorders. It would also be helpful to have agreement on how to define schizophrenia and to compare schizophrenic subtypes and groups such as borderline and schizotypal personality disorders. Some research suggests that schizophrenics yield reliably different scores on popular and human content responses than do non-schizophrenics. The accuracy of the Schizophrenia Index might be improved by including these measures. In addition, there is a need for replication of the results of Exner and his colleagues and a need for access to unpublished studies done by Rorschach Workshops. Despite its limitations, the Schizophrenia Index continues to be a useful tool in the diagnosis of schizophrenia. (NB)
Publication Type: Information Analyses
Education Level: N/A
Authoring Institution: N/A
Identifiers: Rorschach Test; Schizophrenia Index
Note: Research paper for the Doctor of Psychology degree, Biola University.