Aresearcher is using a repeated-measures study to evaluate the difference between two treatments. if the difference between the treatments is consistent from one participant to another, then the data should produce
a. a small variance for the difference scores and a small standard error.
b. a small variance for the difference scores and a large standard error.
c. a large variance for the difference scores and a small standard error.
d. a large variance for the difference scores and a large standard error.