Psychological disorder is a state of dysfunction of the mind of an individual which leads to incomprehensible thoughts, action and conduct that is intolerable to the cultures and values of the society. Abnormal psychology refers to a study of people who inhibit typical behaviours that are inappropriate according to the norms of the society are illogical, unacceptable and often associated with mental illness (Boelen, & Prigerson, 2007).
The level of distress in an individual is classified depending on the cause and outcomes of the condition on the person. Diagnostic and Statistical Manual has been invented for use by psychiatrists in studying and measuring distress to similar standards for this approach. The great comparison and contrasts on different depressions are psychosis versus reactive, and endogenous against reactive. Moreover, the recent studies continue to unveil other classes of stress such as primary versus secondary and unipolar and bipolar types of stress (Dowrick & Frances, 2013).
Besides the standard modern system of classifying depression, Diagnostic and Standard Manual, other methods were initially adopted. The International Classification of Diseases was a module employed to classify depressions since the healthcare personnel treat depression like any illness that requires medical attention. The consistent research in the classification of mental disorders has seen the development of different models such as ICD-5, ICD-10, DSM-III and DSM-5. The agreement on DSM-IV has been by its compatible model that surpasses social norms and can be applied to the clinical purpose and other interventions (Regier, Kuhl, & Kupfer, 2013)…
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