According to Rosenhan and Seligman (1995), behavior may be classified as dysfunctional when it is a statistical infrequency, meaning it is observed very rarely in society. This term is also used if the observed behavior deviates from the norms or usual expectations, and is characterized by the inability to function properly in the community. In addition, Jahoda (1958) emphasized that a behavior is dysfunctional if it deviates from mental health such as not having a realistic view, inability to adapt to the current environment, having an extreme pessimistic self-concept, etc. For instance, someone would be considered dysfunctional if he cannot maintain his hygiene, harms himself or others, and hears voices that others cannot.