Multiple Choice
Adding a nonequivalent control group to an interrupted time series design
A) eliminates the effects of local history.
B) converts a quasi-experimental design to an experimental design.
C) requires multiple replications.
D) results in none of these.
Correct Answer:

Verified
Correct Answer:
Verified
Q31: A researcher is studying the effects of
Q32: What are the primary threats to internal
Q33: In a nonequivalent control group pretest-posttest design,
Q34: When researchers want to distinguish age differences
Q35: Why do researchers often need to "patch
Q36: Researchers "patch-up" quasi-experimental designs by<br>A)adding comparison groups.<br>B)measuring
Q38: Unlike an independent variable, a quasi-independent variable<br>A)has
Q39: Quasi-experimental designs differ from experimental designs in
Q40: Contemporary history is a problem<br>A)in all experimental
Q88: How do quasi-experimental designs differ from true