Multiple Choice
Problems with the weak pretest-posttest quasi-experimental design include:
A) Random assignment of groups to treatments/conditions
B) Participants assign themselves to groups
C) The researcher does not have control over the IV
D) b and c
Correct Answer:

Verified
Correct Answer:
Verified
Q28: Random assignment of participants to groups always
Q29: There is increased confidence that random assignment
Q30: What differentiates randomized experiments from quasi-experiments?
Q31: The Solomon four-group design is a quasi-experimental
Q32: A researcher is interested in the effects
Q33: Possible problems with the one group pretest-posttest
Q34: match the example with its specific design
Q35: When matching is used, the characteristic that
Q36: Matching is used when the IV only
Q38: Nonequivalence of groups does not affect the