A cognitive psychologist tests whether memory for abstract ideas improves when the information is presented both verbally and visually.Which of the following scenarios represents a Type II error?
A)The psychologist concludes that memory does not improve when the true situation is that it does not improve.
B)The psychologist concludes that memory does not improve when the true situation is that it does improve.
C)The psychologist concludes that memory does improve when the true situation is that it does improve.
D)The psychologist concludes that memory does improve when the true situation is that it does not improve.

Question

Quizplus · Accepted Answer

A Type II error occurs when the null hypothesis is not rejected, even though it is actually false. In this case, the null hypothesis would be that memory for abstract ideas does not improve with both verbal and visual presentation. A Type II error would occur if the psychologist concludes that memory does not improve when in fact it does. So, choice B represents a Type II error.

A Cognitive Psychologist Tests Whether Memory for Abstract Ideas Improves