Critical appraisal Assessment and interpretation of evidence, by systematically considering its validity, results and relevance to your own work. Descriptive study Research which aims to describe a population, e.g. the national census. Evidence A means of proving an unknown or disputed fact. The conscientious, explicit and judicious use of current best evidence in making decisions about the care of individual patients. Hypothesis Theory to be proved or disproved by reference to facts.
Literature review Any summary of the literature.
Mental health care setting Any setting in which mental health care is provided. Milieu Environment, including the physical environment, policies and procedures, atmosphere etc. Neuroleptic see Antipsychotic medication. Psychotic A broad term for the more severe forms of mental disorder, that is organic mental disorders, schizophrenia and affective disorder, in which hallucinations and delusions may occur. People with psychoses defined in this way may lack insight and may not recognise that they are unwell.