Inpatients and outpatients with DSM-5 diagnosis of schizophrenia spectrum disorder.
Presence of positive symptoms at inclusion (PANSS delusions, suspiciousness or grandiosity ≥3).
Stable condition with no expected changes in medication or symptoms during the last 3 months (information from clinical services, note that stable condition includes lack of suicidality).
Patient providing informed consent.
You may not be if
Having received MCT in the previous year.
Neurological disorder, or severe medical condition other than psychosis
A score above 5 in the "Hostility" and the "Suspiciousness" items of the PANSS Positive subscale (to preserve group dynamics).
Patient considered by his psychiatrist to be at serious risk of harm to self or others (e.g. previous aggressive or suicidal behaviors)
Patient in an exclusion period defined by another research protocol
Patient involved in another Investigational Medicinal Product trial
Patient under guardianship (i.e. French "tutelle")
Patients deprived of freedom because of a judicial measure.
Clareo Health | Personalized Metacognitive Training for Psychosis: A Randomized Controlled Trial