The MMPI-168 was administered to 786 adolescent males and 883 adolescent females to determine whether the scale factor structure was stable across sex and before and after using regression weights to predict full scale scores. For each analysis three factors accounting for 65 to 69% of the variance emerged, though in varying order: psychoticism and acting out, depression (or neuroticism), and defensiveness. Major response clusters on the MMPI-168 thus appear to remain following use of regression equations.
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