If the rate of a particular disorder occurring in the population is low,what impact does this have on the classification of individuals based on the results of a psychological test?
A) There will be no impact on the accuracy of the classification.
B) More individuals will be incorrectly classified as not having the disorder.
C) More individuals will be incorrectly classified as having the disorder.
D) The impact cannot be determined based on the information provided.

Question

Quizplus · Accepted Answer

When the prevalence of a disorder is low, the positive predictive value of a test decreases, leading to a higher rate of false positives, meaning more individuals will be incorrectly classified as having the disorder.

If the Rate of a Particular Disorder Occurring in the Population