If the results of a repeated-measures study show that nearly all of the participants score around 5 points higher in Treatment A than in Treatment B, then which of the following accurately describes the data?

a. The variance of the difference scores is small and the likelihood of a signi-

cant result is low.

b. The variance of the difference scores is small and the likelihood of a signi-

cant result is high.

c. The variance of the difference scores is large and the likelihood of a signi-

cant result is low.

d. The variance of the difference scores is large and the likelihood of a signi-

cant result is high.