If a study showed that a particular treatment produced an improvement in 55% of the participants, while 52% of the control participants improved spontaneously, the treatment
A) Would undoubtedly be statistically significant
B) Would lack clinical significance
C) Would have clinical significance, but not statistical significance
D) Is worth adopting.

Question

Quizplus · Accepted Answer

The treatment may be statistically significant (i.e. the difference between the treatment group and control group may be statistically significant), but the effect size is minimal (only a 3% difference between the treatment and control groups). This suggests that the treatment lacks clinical significance, as the benefit is not substantial enough to be considered meaningful. Therefore, option B is the best choice.

If a Study Showed That a Particular Treatment Produced an Improvement