Psych 354 Lecture 4: Lecture 4 Chp 4 Notes

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7 Feb 2017
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Abnormal Psychology
Lecture 4 Chapter 4 2.2.17
Black = Slides
Blue = Teacher
No Song of the Day
Chapter 4: Classification & Assessment of Abnormal Behavior
Outline:
Classifying Abnormal Behavior
o DSM 5
o Evaluating Classification System
Psychological Assessment.
Classifying Abnormal Behavior
What is Classification?
o Subdividing or organizing a set of related objects.
Why use classification system?
o Benefits:
Facilitates description & communication
Aids treatment decisions & prognosis
Facilitates research on etiology, treatment outcome
Facilitates 3rd party reimbursements.
o Concerns:
May lead to stigmatization.
Unrelated problems may be misattributed to the disorder.
Expectations for behavior may change.
Categories vs. Dimensions
o Catergorical approach
Reflects a difference in kind or quality
o Dimensional approach
Focuses on the amount of a particular characteristic an object possesses.
Approaches to classifying abnormal behavior
o Categorical approach
“Yes” or “No”
People with abnormal behaviors are qualitatively different than other
people, discrete groups.
Largely used by DSM-5
Cut-off is at least 5/9 symptoms, they’re considered to have
disorder.
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Approach assumes a bi-modal distribution of data.
o Weaver ant size example
o Dimensional approach
How much?
People with abnormal behaviors are quantitatively different (continuum).
o Diagnostic Systems for Mental disorders
Diagnostic and Statistical Manual of Mental Disorders (DSM) used in
US
International Statistical Classification of Diseases & Related Health
Problems.
International and Classification of Mental and Behavioral Disorders
o ICD-10 (1992)
o World Health Organization
o Physical and mental disorders
o ICD-11 is under revision.
Diagnostic and Statistical Manual of Mental Disorders (DSM)
o American Psychiatric Association
DSM-I (1952)
DSM-II (1968)
DSM-III (1980)
DSM-IV (1994)
DSM-IV-TR (2000)
DSM-5 (2013)
DSM-I (1952)
o The first official manual of mental disorders
o Introduced during WWII
o Relied heavily on psych-dynamic concepts.
DSM-II (1968)
o Psychodynamic perspective
o Included behavioral disorder of childhood and adolescence.
o New section for sexual deviation.
o Homosexual diagnosis was removed in the 7th printing of DSM-II
DSM-III (1980)
o Symptom based system
o Introduced multi-axial system
o Added new diagnostic categories.
Multi-axial system:
o Axis I Clinical Disorders of Mental Illness
o Axis II Personality Disorders and Mental Retardation
o Axis III General Medical Condition
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