Strong evidence of a treatment effect in a time series with nonequivalent control group design is indicated by
A)discontinuity in neither the treatment group nor the comparison group.
B)discontinuity in both the treatment group and the comparison group.
C)discontinuity in the comparison group but not in the treatment group.
D)discontinuity in the treatment group but not in the comparison group.

Question

Quizplus · Accepted Answer

Discontinuity in the treatment group but not in the comparison group would indicate a treatment effect. This is because if there is a change or discontinuity in the treatment group, but not in the group that did not receive treatment, it suggests that the treatment had an impact. Discontinuity in neither group or both groups does not provide evidence of a treatment effect, and discontinuity only in the comparison group suggests something else may be affecting the results.

Strong Evidence of a Treatment Effect in a Time Series