A COMPARISON OF THE MMPI-2 AND RORSCHACH INKBLOT TECHNIQUE IN ASSESSING SCHIZOPHRENIA
A COMPARISON OF THE MMPI-2 AND RORSCHACH INKBLOT TECHNIQUE IN ASSESSING SCHIZOPHRENIA
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Date
1995
Authors
Lindgren, Karen N.
Advisor
Smith, Barry D.
Citation
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Abstract
The study examined the concordance of Rorschach and
MMPI-2 variables relating to schizophrenia. 85 psychiatric
inpatients were administered both the MMPI-2 and Rorschach.
A profile analysis compared individuals who elevated on the
Rorschach SCZI index to nonelevators. No significant
profile differences were found using a SCZI index cutoff of
4. When more distinct SCZI index groups were created ( ≥ 5
vs. ≤ 2) the profiles were found to be significantly
different (average MMPI-2 profile for elevated SCZI group =
8-6-7) and the elevated SCZI group evidenced higher MMPI
scale scores overall. The 8-6-7 profile has been
associated with schizophrenia in previous research. The
sensitivity, specificity, and hit rate of both instruments
in predicting clinical diagnoses were also calculated. The
MMPI-2 demonstrated better sensitivity while the SCZI index
yielded higher specificity; the combination of instruments
produced the best hit rate. The study demonstrated a
relationship between MMPI-2 and Rorschach variables related
to psychosis.