alleryHow does the number of disorders listed in DSM-5 compare with the number listed in DSM-IV?
AIt rose from 237 to 297 disorders
BIt stayed level at 265 disorders
CIt rose from 106 to 237 disorders
DIt fell from 297 to 237 disorders
Answer & Solution
Correct answer: D. It fell from 297 to 237 disorders
1. The count of diagnosable conditions grew steadily across the early editions of the manual.
2. DSM-I listed 106 diagnoses in 130 pages, and DSM-III listed 265 diagnoses in 886 pages.
3. DSM-IV listed 297 disorders, and DSM-5 lists 237, so the count fell even though the volume grew longer.
4. Reading the change as a rise inverts the two figures, which is the trap set by the growth of the page count.
5. The figure 265 belongs to DSM-III and 106 to DSM-I, so neither describes the most recent change.
_Source: OpenStax Psychology (1st ed., CC BY 4.0), Ch 15 "Psychological Disorders", section 15.2 Diagnosing and Classifying Psychological Disorders_
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