This definition is based on the idea that a person is unable to cope with everyday life.
Rosenhan& Seligman (1989) describe seven features of personal dysfunction from 'personal distress to unpredictability' and 'violation of moral standards.'
The Global Assessment of Functioning scale (GAF) assesses functioning on social, occupational and psychological levels.
People may act differently if they have the basic inability to manage in everyday life their behaviour is abnormal.
Rosenhan& Seligman's 7 features are unpredictability, maladaptive behaviour, personal distress, irrationality, observer discomfort, violation of moral standards and unconventionality.
Personal dysfunction was described in Rosenhan & Seligman's7 features.