| pubmed-article:6108653 | pubmed:abstractText | Four strategies are proposed for comparing patterns of yes-no-symptoms before and after therapy (or time elapsed) in a sample of N patients: 1) a test for change of (mean) symptom score, 2) a test for (proportional) change of a specified symptom, 3) a test for (proportional) change of a specified symptom pattern and 4) a test for specified change or persistence of a selected symptom pattern. All strategies are exemplified by N = 75 schizophrenics observed as to 3 main symptoms (emotional withdrawal, thinking disturbances, and hallucinations) before and after a neuroleptic treatment. | lld:pubmed |
