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  • Title: [Construction of second order AMP scales: "manic depressives" and "schizophrenic syndrome"].
    Author: Woggon B, Dittrich A.
    Journal: Int Pharmacopsychiatry; 1979; 14(6):325-37. PubMed ID: 548506.
    Abstract:
    A previous two-factor solution of the AMP system was confirmed by a factor analysis in 552 patients, mainly suffering from endogenous psychoses. Based on these results, two second-order scales ('manic-depressive' and 'schizophrenic syndrome') were constructed according to the classical theory of mental testing. The scales are orthogonal. Their reliability and validity is satisfactory. It is suggested to use the two new scales together with the known 9 AMP scales.
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