If 95% of the children who score highly on an inventory of disruptive behavior turn out to have a diagnosable disruptive behavior problem,which of the following is NOT necessarily true?
A) There is a 5% false positive rate.
B) The test has low negative predictive power.
C) The test has high positive predictive power.
D) The test has good criterion-related validity.

Question

Quizplus · Accepted Answer

If 95% of the children who score highly on an inventory of disruptive behavior turn out to have a diagnosable disruptive behavior problem, it means that the test has a high positive predictive power (the ability to correctly identify individuals who have the condition) and a low false positive rate (5%). However, we cannot infer anything about the negative predictive power of the test (ability to correctly identify individuals who do not have the condition) based on this information alone. Therefore, option B is not necessarily true. Option D (the test has good criterion-related validity) cannot be inferred from the given information.

If 95% of the Children Who Score Highly on an Inventory