Classification and comorbidity

Question	Answer
Validity	Useful and accurate, purposeful
Reliability	Consistent over time and across different raters
Reliability & validity in DSM	Emphasis on reliability at the expense of validity
DSM-I & DSM-II	General description of disorders; no specific criteria Three disorders relevant to anxiety: Phobic neuroses, Anxious neuroses, Obsessive compulsive neuroses.
DSM-III	Specific criteria and rules for diagnosing disorders Increased reliablity 12 anxiety disorders that are similar to those we have today
Categorical classification system	Dichotomous decision: you have the disorder or you don't
Dimensional classification system	Everyone falls somewhere on the spectrum, from no symptoms to very severe. You can use a cutpoint for diagnosis
Problems with current categorical DSM system	Loss of information Arbitrary cut-offs Subthreshold symptoms still impairing Extensive comorbidity

Resource summary

	Created by Ellen Klerkx about 7 years ago