Two views on using the Rorschach test for diagnosing schizophrenia: The Rorschach Test in Clinical Diagnosis: A Critical Review. J Clin Psychol. 2000 Mar;56(3):395-430; discussion 431-4. Let's Call the Whole Thing Off-A Response to Dawes 2001.he Scientific American article points out that the Rorschach test (along with the similar TAT assessment) has both a low scoring validity and low reliability. Scoring validity errors often come from the subjective assessments of the professionals who administer the test.