TAU consists of psychiatric management by a clinical team composed of at least one psychiatrist and a social worker and/or a psychiatric nurse with additional access to community treatment or hospital admission. Treatment involves antipsychotic medication, regular office-based or community contact with the clinical team for treatment monitoring, and socialization groups, therapy, and psychoeducational groups. No attempts have been made to standardize this treatment as TAU is tailored to the patient's specific needs.

The Savoring Belief Inventory (SBI) is a self-reported scale for measuring beliefs about one's capacity for savoring things. The scale has twenty four items, including a positive scale (twelve items) and a negative scale (twelve items). The scale has good validity and a high test-re-test reliability. It measures a person's thinking regarding his/her capacity to savor positive experiences, in terms of past experiences, current experiences, and future anticipation. The total SBI score will be used as a secondary outcome variable.

The Temporal Experience of Pleasure Scale (TEPS) is a self-reported scale and contains eighteen items included in two sub-scales: anticipatory pleasure (ten items) and consummatory pleasure (eight items). Items targeting anticipatory pleasure reflect the pleasure felt when anticipating a positive or pleasant stimulus. Items measuring consummatory pleasure refer to the direct pleasure experienced upon exposure to a stimulus. Items can be general or specific. The response to items falls on a six-point Likert scale from 1 (very false for me) to 6 (very true for me). This scale has been validated in French.

The Anticipatory and Consummatory Interpersonal Pleasure Scale (ACIPS) is designed to assess one's ability to experience pleasure in the interpersonal domain. It is a seventeen-item self-reported measure that consists of seven anticipatory and ten consummatory items. The ACIPS is scored on a six-point Likert scale, ranging from 1 (very false for me) to 6 (very true for me). The format is therefore quite similar to that of TEPS. The difference between the two scales lies mainly in terms of the items' content.

The Social Functioning Scale (SFS) is constructed to assess those areas of functioning that are crucial to the community maintenance of individuals with schizophrenia. This is a reliable, valid, sensitive instrument and responsive to change. This last scale will be completed by the case-manager of the participant.

The Calgary Depression Scale for Schizophrenia (CDSS) includes nine items: depression, hopelessness, self-depreciation, guilty ideas of reference, pathological guilt, morning depression, early wakening, suicide, and observed depression. This scale has been validated in French.

The Scale for the Assessment of Negative Symptoms (SANS) measures schizophrenia's deficit symptoms within the framework of schizophrenic disorders. It comprises 25 items, scored from 0 to 5. A definition of each item, including examples, facilitates a better understanding of the scale's content. The rating system is ordinal, from 0 (absent) to 5 (severe). The twenty-five items are grouped into five components: 1) withdrawal or emotional poverty; 2) alogia (lack of speech); 3) avolition and apathy (lack of energy, lack of initiative); 4) anhedonia and social withdrawal (loss of interests); 5) attention. The scale was translated into French with acceptable validity. The composite score for the avolition-apathy and anhedonia-social withdrawal scale will be used as the main outcome variables.