Let's call the whole thing off: a response to Dawes (2001).
There has been a recent controversy regarding the validity of the Rorschach test. This comment is in response to criticism levied by R. M. Dawes (2001) on the incremental validity of the Ego Impairment Index (EII), a Rorschach-derived measure of cognition, perception, and reasoning. The Dawes articles (1999 and 2001) serve as an example of the recent practice of placing extraordinary challenges on the Rorschach test. Dawes's arguments are examined and parallel examples are provided that demonstrate the bias used to judge the validity of the EII, the Rorschach, and psychological assessment. Still, in the face of criticism, the results (see Dawes, 2001) support the incremental validity of the EII. Thus, the conclusion presented in this Comment is that it is time for us to "call the whole thing off" and end the Rorschach controversy that has occupied so much recent attention and generated so few new ideas.
Perry
William
W
Department of Psychiatry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-8218, USA. wperry@ucsd.edu
D004532:Ego; D006801:Humans; D011594:Psychometrics / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D012392:Rorschach Test / Q000706:statistics & numerical data*; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D013850:Thinking