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Abnormality (behavior)
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==Several conventional criteria== There are five main criteria of abnormality:{{Citation needed|date=May 2025}} # Statistical Criterion # Social Criterion # Personal Discomfort (Distress) # [[Adaptive behavior|Maladaptive Behavior]] # Deviation from Ideal Abnormal behaviors are "actions that are unexpected and often evaluated negatively because they differ from typical or usual behavior".<ref>Durand, V., & Barlow, D. (2016). Essentials of Abnormal Psychology. Boston, MA: Cengage Learning.</ref> The following criteria are subjective: * [[maladaptivity|Maladaptive]] and malfunctional behaviors: behaviors, which, due to circumstance, are not fully adapted to the environment. Instead, they become malfunctional and detrimental to the individual, or others. For example, a mouse continuing to attempt to escape when escape is obviously impossible.<ref>{{Cite journal|date=2003-05-02|title=Medical paradigms for the study of problem behaviour: a critical review|journal=Applied Animal Behaviour Science|language=en|volume=81|issue=3|pages=265β277|doi=10.1016/S0168-1591(02)00286-1|issn=0168-1591|last1=Mills|first1=Daniel S.}}</ref> * Behavior that violates the standards of society.<ref name=":0">{{Cite book|title=First Responder's Guide to Abnormal Psychology|date=2007|publisher=Springer, Boston, MA|isbn=9780387351391|pages=13β18|language=en|doi=10.1007/978-0-387-35465-1_2|chapter = Normal vs. Abnormal Behavior: A Continuum }}</ref> When people do not follow the conventional social and moral rules of their society, the behavior is considered to be abnormal. * Observer discomfort.<ref>David Rosenhan & Martin Seligman (1984) ''Abnormal Psychology''</ref> If a person's behavior brings discomfort to those in observation, it is likely to be considered abnormal. The standard criteria in psychology and [[psychiatry]] is that of mental illness or mental disorder. Determination of abnormality in behavior is based upon [[medical diagnosis]].{{Citation needed|date=May 2025}} Other criteria include: * Statistical infrequency: statistically rare behaviors are called abnormal. Though not always the case, the presence of abnormal behavior in people is usually rare or statistically unusual. Any specific abnormal behavior may be unusual, but it is not uncommon for people to exhibit some form of prolonged abnormal behavior at some point in their lives.<ref>{{cite web | url=https://www.nimh.nih.gov/publicat/numbers.cfm | title=Mental Illness in America | archive-url=https://web.archive.org/web/19991009122407/https://www.nimh.nih.gov/publicat/numbers.cfm | archive-date=1999-10-09}}</ref> * Deviation from social norms: behavior that is deviant from [[social norms]] is defined as the departure or deviation of an individual from society's unwritten rules (norms). For example, if one were to witness a person jumping around, nude, on the streets, the person would likely be perceived as abnormal to most people, as they have broken society's norms about wearing clothing. There are also a number of criteria for one to examine before reaching a judgment as to whether someone has deviated from society's norms:{{Citation needed|date=May 2025}} ** [[Culture]]: what may be seen as normal in one culture, may be seen as abnormal in another. ** Situation & context one is placed in: for example, going to the toilet is a normal human act, but going in the middle of a supermarket would be most likely seen as highly abnormal, i.e., defecating or urinating in public is illegal as a misdemeanor act of indecent public conduct. ** Age: a child at the age of three could get away with taking off clothing in public, but not a person at the age of twenty. ** Gender: a male responding with behavior normally reacted to as female, and vice versa, is often likely to be seen as abnormal or deviant from social norms. ** Historical context: standards of normal behavior change in some societies--sometimes very rapidly. * Failure to function adequately: behavior that is abnormal. These criteria are necessary to label an abnormality as a disorder, if the individual is unable to cope with the demands of everyday life.<ref>{{Cite web|url=https://www.simplypsychology.org/abnormal-psychology.html|title=Abnormal Psychology {{!}} Simply Psychology|website=www.simplypsychology.org|language=en|access-date=2018-04-07}}</ref> Psychologists can disagree on the boundaries that define what is 'functioning' and what is 'adequately', however, as some behaviors that can cause 'failure to function' are not seen as bad. For example, firefighters risking their lives to save people in a blazing fire may be 'failing to function' in the fact that they are risking their lives, and in another context, their actions could be construed as [[Pathology|pathological]], but within the context of being a firefighter said risks are not at odds with adequate functioning. * Deviation from ideal mental health: defines abnormality by determining if the behavior the individual is displaying is affecting their mental well-being. As with the failure to function definition, the boundaries that stipulate what 'ideal mental health' is are not clearly defined. A frequent problem with the definition is that all individuals at some point in their life deviate from ideal mental health, but it does not mean the behavior is abnormal. For example, someone who has lost a relative is distressed and deviates from "ideal mental health" for a time, but their distress is not defined as abnormal, as distress is an expected reaction.<ref>{{cite web|url=http://www.medicalnewstoday.com/articles/53659.php|title=Complicated Grief Needs Specific Treatment|access-date=2007-08-30|archive-date=2007-12-19|archive-url=https://web.archive.org/web/20071219145141/http://www.medicalnewstoday.com/articles/53659.php|url-status=dead}}</ref> A common approach to defining abnormality is a multi-criteria approach, where all definitions of abnormality are used to determine whether an individual's behavior is abnormal. For example, psychologists would be prepared to define an individual's behavior as "abnormal" if the following criteria are met:{{Citation needed|date=May 2025}} * The individual is engaging in behavior that is preventing them from functioning. * The individual is engaging in behavior that breaks a social norm. * The individual is engaging in behavior that is statistically infrequent. A good example of an abnormal behavior assessed by a multi-criteria approach is [[depression (mood)|depression]]: it is commonly seen as a deviation from ideal mental stability, it often stops the individual from 'functioning' in normal life, and, although it is a relatively common mental disorder, it is still statistically infrequent. Most people do not experience significant [[major depressive disorder]] in their lifetime.<ref>{{cite web |title=How prevalent is mental illness in the USA |url=http://www.medicalnewstoday.com/index.php?page=aboutus&title=About+Us| archive-url=https://web.archive.org/web/20090122023427/http://www.medicalnewstoday.com/index.php?page=aboutus&title=About+Us | archive-date=2009-01-22 }}</ref> Thus, depression and its associated behaviors would be considered abnormal.
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