The Michigan Case Questionnaire (MCQ) is a standardized questionnaire designed to assess the psychosocial functioning of adults and adolescents. It consists of 120 items divided into 11 sections that measure a variety of psychological and social domains, including interpersonal relationships, substance use, mental health, education and work, and family functioning. The MCQ is used to assess an individual's mental health status, identify potential risk factors for mental health problems, and evaluate the efficacy of interventions. There are two versions of the MCQ: the Adult MCQ and the Adolescent MCQ. The Adult MCQ is designed to assess the psychological and social functioning of adults aged 18 and over, while the Adolescent MCQ is designed to assess the psychological and social functioning of adolescents aged 12-17. The MCQ has been found to be a reliable and valid measure of psychological and social functioning, and is used widely in clinical, research, and evaluation contexts.