Classification of Mental Disorders

Topics: Mental disorder, Abnormal psychology, Classification of mental disorders Pages: 2 (511 words) Published: December 25, 2012
Classification and mental Disorders: Class Test Q/As

1. In abnormal psychology Classification involves…..
….attempt to delineate meaningful sub-varieties of maladaptive behaviors.

2. Functions served by/uses of Classification?
-Necessary as a first step toward introducing order into the discussion of nature, causes and treatment of maladaptive behavior. -Enables communication about particular clusters of abnormal behavior in agreed upon and relatively precise ways. -Makes possible to collect statistics on how common are various types of disorders.

3.What is reliability in the context of Classification?
….an index of the extent to which different observers/experts can agree that a person’s behavior fits a given diagnostic class. If they don’t agree, it may mean that the classification criteria are not precise enough to determine whether the suspected disorder is present or absent.

4. Validity of Cl. Refers to…..
In this context validity is defined by the degree to which a diagnosis accurately conveys to us something clinically important about a person whose behavior fits the category, such as helping to predict the future course of the disorder….

5. Normally Validity presupposes Reliability. Explain
Logic: If we cant agree on the class to which a disordered person’s behavior belongs, then the question of the validity of the diagnostic classification that may be under consideration becomes irrelevant.

6. Good Reliability does not itself guarantee validity. Explain Reliable assignment of a person’s behavior to a given class of mental disorder will prove useful only to the extent that the validity of that class has been established through research.

7. Identify and Define the 3 basic approaches possible for classifying abnormal behavior. - Categorical – All human behavior can be divided into the categories of healthy and disordered. Within the ‘disordered’ exist discrete, non-overlapping classes and types of disorder having a high degree of...
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