Author Question: In a nonequivalent before-after design, we compare: a. the pretest and posttest scores of the ... (Read 68 times)

Anajune7 · **on:** Jun 20, 2018

In a nonequivalent before-after design, we compare:

a. the pretest and posttest scores of the experimental group.
b. the pretest scores of the experimental and control groups.
c. the posttest scores of the experimental and control groups.
d. the change in scores from pretests to posttest for the experimental and control groups.

Question 2

If we want to make comparisons between two groups that we know are different at the start of the experiment, the design to use is:

a. nonequivalent before-after.
b. multiple time-series.
c. ex post facto.
d. interrupted time-series.