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The authors found that 11 of the 26 items of the Manic-State Rating Scale characterized common elements of mania in 12 manic-depressive patients and that these items were highly correlated with independent ratings of change in the severity of mania. Eight other items provided a basis for dividing the patients into two groups: one showing elation and grandiosity but little paranoid or destructive symptomatology, and the other with minimal euphoria and grandiosity but more marked paranoid and destructive behavior. The authors also found ratable depression in 11 of these 12 patients.
Beigel et al. (Wed,) studied this question.