[Building syndromes in the AMP-system (author's transl)].

The symptoms of 2269 psychiatric patients on admission, documented by the AMP (PAS) system, were factor-analysed to build syndromes of psychopathology. The nine syndromes could be cross-validated. We believe a useful description of the findings on admission can be made by the following syndromes: paranoid-hallucinatory, manic, psycho-organic, depressive, apathetic, hostile, stuporous, somatic, compulsive. The correlation with other syndromes based on AMP by other scientists is substantial. For each item we computed the percentage of occurrence and the item-scale correlation, and for the syndrome-scales reliability, intercorrelations and T-transformations. We calculated the mean profiles for some diagnostic groups to test some aspects of the validity of the syndromes. It was demonstrated that a differentiation is possible.