Which study would be most effective with an after-only experimental research design?
A) The effect of cause of spousal death on widow self-esteem
B) The effect of preoperative teaching on vascular complications after surgery
C) The effect of a mentorship program on improvement of student clinical performance in a bachelor's of science in nursing (BSN) program
D) The effect of a videotape format teaching method on the knowledge of adolescent males about the warning signs of testicular cancer

Question

Quizplus · Accepted Answer

Correct B: After-only design is particularly useful when outcomes cannot be measured beforehand (e.g.,postoperative complications).
Incorrect A: The effect of cause of spousal death could not be controlled and studied.
Incorrect C: Student performance could be measured before and after intervention.
Incorrect D: Knowledge of testicular cancer could be measured before and after intervention.

Which Study Would Be Most Effective with an After-Only Experimental