Psychology / Unit 12 Psych 1320 short lesson, about 20 seconds
Comparing Across Diagnostic Systems
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The idea
Prevalence figures produced under the DSM and under the ICD are not directly comparable, because their criteria and thresholds differ.
In practice
The same population yields different rates for a disorder depending on which manual defined it.
Where people slip
Always check which system a statistic came from. The two are largely aligned and never identical.
Your place on the trail
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