Over a period of 4 weeks, metacognitive training for schizophrenia patients (MCT), delivered both in a group and individually, is compared to cognitive remediation (CogPack training). Blind to treatment assignment, both groups are assessed before intervention and four weeks later with the Positive and Negative Symptoms Scale (PANSS), the Psychosis Rating Scales (PSYRATS) and cognitive tests. Delusion severity serves as the primary endpoint. It is assumed that MCT will improve delusion severity to a greater extent than CR in the course of 4 weeks taking medication into account.
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delusion severity as assessed with the Positive and Negative Syndrome Scale (PANSS); sum of item scores p1, p5, p6 and g9
Timeframe: 4 weeks