Psychometric Considerations of the MMPI-2. William P. Wattles, Ph.D. Francis Marion University. MMPI/MMPI-2 second most widely used test by clincical psychologists (86%) Translated into more than 50 languages. Original MMPI. Published 1943
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William P. Wattles, Ph.D.
Francis Marion University
0 I do not feel sad.
1 I feel sad.
2 I am sad all the time and can't snap out of it.
3 I am so sad or unhappy that I can't stand it.
68% psychologists (86%)
99.85% psychologists (86%)
Original linear T-scores were problematic because the underlying data is somewhat skewed.
Thus a T score on one scale represented a different percentile than one on another scaleMMPI Uniform T score
Involve averaging of the T-scores across the scales. underlying data is somewhat skewed.MMPI Uniform T-scores
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