A Type II error means that a researcher has ____.
A) falsely concluded that a treatment has an effect
B) correctly concluded that a treatment has no effect
C) falsely concluded that a treatment has no effect
D) correctly concluded that a treatment has an effect

Question

Quizplus · Accepted Answer

A Type II error occurs when the null hypothesis is not rejected even though it is false. This means that the researcher has falsely concluded that a treatment has no effect when in reality it does have an effect.

A Type II Error Means That a Researcher Has ____