TY - JOUR
T1 - The Validity of the Rorschach and the Minnesota Multiphasic Personality Inventory
T2 - Results from Meta-Analyses
AU - Garb, Howard N.
AU - Florio, Colleen M.
AU - Grove, William M.
PY - 1998/9
Y1 - 1998/9
N2 - Results from meta-analyses have been widely cited to defend the validity of the Rorschach. However, the meta-analyses have been flawed. For example, one meta-analysis included results that were obtained by calculating correlations but not results that were obtained by conducting t tests or analyses of variance. When we reanalyzed the data from the most widely cited meta-analysis (Parker, Hanson, & Hunsley, 1988), we found that for confirmatory studies (also called convergent-validity studies), the Minnesota Multiphasic Personality Inventory (MMPI) explained 23% to 30% of the variance, whereas the Rorschach explained only 8% to 13% of the variance. These results indicate that the Rorschach is not as valid as the MMPI.
AB - Results from meta-analyses have been widely cited to defend the validity of the Rorschach. However, the meta-analyses have been flawed. For example, one meta-analysis included results that were obtained by calculating correlations but not results that were obtained by conducting t tests or analyses of variance. When we reanalyzed the data from the most widely cited meta-analysis (Parker, Hanson, & Hunsley, 1988), we found that for confirmatory studies (also called convergent-validity studies), the Minnesota Multiphasic Personality Inventory (MMPI) explained 23% to 30% of the variance, whereas the Rorschach explained only 8% to 13% of the variance. These results indicate that the Rorschach is not as valid as the MMPI.
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U2 - 10.1111/1467-9280.00075
DO - 10.1111/1467-9280.00075
M3 - Article
AN - SCOPUS:0141514233
SN - 0956-7976
VL - 9
SP - 402
EP - 404
JO - Psychological Science
JF - Psychological Science
IS - 5
ER -