A nurse researcher is planning a quantitative study to test the effect of a new wound product on wound healing.What factors are necessary to implement an experimental pretest-posttest design? (Select all that apply.)
A) Inclusion of a second control group
B) Pretest data can be collected
C) Use of two posttreatment data collection times
D) Subjects randomized to only the control group
E) Random assignment of subjects to treatment and control groups

Question

Quizplus · Accepted Answer

Correct B: Pretest data must be possible for use of this design.
Correct E: Randomization must be possible to both treatment and control groups.
Incorrect A: A second control group is not necessary for pretest-posttest design.
Incorrect C: Two posttest data collection times are not necessary; only one is needed.
Incorrect D: Randomization must be possible to both treatment and control groups.

A Nurse Researcher Is Planning a Quantitative Study to Test