Abnormal psychology is the branch of psychology that studies unusual patterns of behavior, emotion and thought, which may or may not be understood as precipitating a mental disorder. Although many behaviours could be considered as abnormal, this branch ofpsychology generally deals with behavior in a clinical context.
There is evidence that some psychological disorders are more common than was previously thought.
Depending on how data are gathered and how diagnoses are made, as many as 27% of some population groups may be suffering from depression at any one time (NIMH, 2001; data for older adults).
Mar 26th, 2015
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