The Metacognition Assessment Scale (MAS-A): Results of a Pilot Study Applying a German Translation to Individuals with Schizophrenia Spectrum Disorders

Objectives: Metacognition, the capacity 'to think about thinking' and thus to reflect and to master interpersonal problems on a mentalistic basis, is often impaired among patients with schizophrenia spectrum disorders and has been suggested as a potential treatment target. However, little is known about the reliability of its measurement and links with related phenomena. The aim of this study was to validate a German translation of the Metacognition Assessment Scale (MAS-A) as a measure to assess metacognition from free narratives of patients' personally relevant episodes and relationships.

Design And Methods: MAS-A was applied to narratives of 22 individuals with schizophrenia spectrum disorders together with self-ratings and behavioural tests of metacognitive and related functions such as mentalizing and emotional awareness. Multi-level modelling allowed to calculate inter-rater reliability (IRR) and inter-rater agreement (IRA) and to include test results as level-2 predictors of the aggregated scorings on the MAS-A subscales in order to explore convergent validity. After considering neurocognition and symptom scores as further predictors, aggregated scorings were correlated with psychosocial functioning.

Results: There were high IRRs and IRAs all over the ratings. None of the related measures accounted for variance in MAS-A scorings, indicating the existence of separable, non-overlapping constructs. Verbal memory and positive symptoms were significant predictors for MAS-A subscales. MAS-A, but no other measure, displayed significant associations with psychosocial functioning.

Conclusions: MAS-A is a reliable expert rating to assess metacognition from patients' free narratives. Considering the link to psychosocial functioning, MAS-A appears to be a promising tool for the evaluation of metacognition.

Practitioner Points: MAS-A is a reliable tool to evaluate metacognitive function from narratives about emotionally relevant topics and meaningful relationships. Metacognition appears separate from neighbouring constructs such as mentalizing, ToM, or emotional awareness. MAS-A scales are significantly predicted by verbal memory and positive symptoms. Only MAS-A scales display significant associations with psychosocial functioning, and it thus is a promising tool to evaluate metacognition in psychotherapy research.