Author Question: A cognitive psychologist tests whether memory for abstract ideas improves when the information is ... (Read 138 times)

123654777 · **on:** Jun 20, 2018

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 2

A characteristic of an F ratio is that

A) the cutoff F equals the calculated F divided by 2.
B) it can never be less than 0.
C) it is negatively skewed.
D) the t distribution for df is the comparison distribution.