MMPI-2 - RELIABILITY WITH COLLEGE-STUDENTS

This study examined the temporal stability and internal consistency of the MMPI-2 in a sample of 128 college students. Mean score comparisons revealed significant differences across a number of scales, but in each case mean differences were slight and viewed as clinically insignificant. Moderate to high stability coefficients were obtained, from .60 to .90 (median of .74). Alpha coefficients ranged from .39 to .91 (median of .62). Analysis of individual difference scores revealed that for each scale approximately 20% of the sample had discrepancy scores that reached or exceeded 10 T-score points (i.e., one standard deviation). Findings are discussed relative to the reliability of the MMPI-2 in clinical assessment.