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University of Toronto Scarborough
Diane Mangalindan

Chapter 15 Developmental psychopathologyPsychopathology study of disorders of the psyche that is the mindDevelopmental psychopathology The investigation of origins courses changes and continuities in disordered or maladaptive behavior over a persons lifespanPrinciples of developmental psychopathology applicable to all age groupsFour basic principles 1We must take into account the role of development in interpreting the symptoms searching for the origins and understanding the course of given disorder2Psychopathology in a child must be viewed in relation both to childrens normal development and to the major developmental tasks and changes that occur as children mature3Developmental psychopathology includes the earliest precursors of disordered behavior 4There are multiple pathways to both normal and abnormal behavior over the course of developmentWHAT IS ABNORMALThe Medical ModelPsychiatry provides with the ideas about the causes and treatments of emotional problems Misconceptions it is a disease or a physical illness it results from abnormal physiological processes or intrapsychic mental processesDue to the above misconceptions developmental psychologists believe medical model as being insufficientThey believe developmental psychopathology as a collection of problem in living caused by environmental circumstancesMeanwhile there are some problems such as autism and attention deficithyperactivity disorder that have genetic rootsAbnormality as Deviation from AverageDefining abnormality as any behaviors or feelings that differ in some degree from the average This method of defining abnormality is referred to as statistical modelEg In American association of mental retardationAAMR children with two standard deviation below the average IQ level are considered as mentally retardedLimitations of statistic model It may work for intelligence as it can be measured numerically and can be measured a s higher or lower Not applicable to concepts like normalityabnormality as they dont have a statistically measurable averageEg if we consider IQ of 100 as normal scores of both 131 and 61 can be considered as abnormalThe statistical model also doesnt give us any guidance on how much of a difference is abnormal and under what conditions differences matterAbnormality as deviation from the idealThis model identifies an ideal healthy personality and any deviation from the ideal are abnormalLimitation of this model How to define an ideal personalityImplicit ideals also affect cultural definitions of abnormality Different ideals in different culturesThe social judgement of child psychopathologyThere is something else other than the childs behavior in any given situation that affects peoples social judgements as to what constitutes abnormal behavior Peoples view of abnormality depends on their individual and cultural values Different groups of people use different criteria to define abnormality these criteria may conflict
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