Efficacy of the Metacognitive Training on symptom severity, neurocognition and social cognition in a sample of patients diagnosed with schizophrenia

The dataset contains data from the project "Efficacy of the Metacognitive Training on symptom severity, neurocognition and social cognition in a sample of patients diagnosed with schizophrenia: a single blind, randomised, controlled trial". The database indicates the missing data. Data imputation was completed using the Predictive Mean Matching (PMM) method.
Data were collected in two different psychiatric wards. Participants were randomized into intervention and control groups. Participants in the intervention group took part in a standard Metacognitive Training (MCT) along with psychiatric treatment as usual (TAU,), while patients in the control group only received TAU. Data were recorded at three time points: before MCT (T0), after MCT (T1) and after a six-month follow-up period (T2). The assessment time points are indicated in the column headings. IQ values shown were used to screen for inclusion criteria (IQ > 70). The database contains data from the following measures in that order: Positive and Negative Syndrome Scale for Schizophrenia (PANSS) , Theory of Mind Picture Stories Task (ToM PST), Baron-Cohen Reading the Mind in the Eyes Test (RMET), Wisconsin Card Sorting Test (WCST), and Repeatable Battery for the Assessment of Neuropsychological Status (RBANS).
Code dictionary of the dataset:
Intervention_Control: 1= randomised to intervention group; 2= randomised to control group
Gender: 1= male; 2= female
Marital status: 1= single; 2= married; 3= divorced; 4= widowed; 5= in a relationship
Level of education: 1= less than primary education; 2= primary education; 3= vocational education; 4= high school diploma; 5= higher education
Occupational status: 1= supported job for psychiatric patients; 2= normal employment part-time; 3= normal employment full-time; 4= unemployed
Antipsychotic treatment: 1= yes, 2= no