Which of these research designs could be classified as quasi-experimental? (Select all that apply.)
a. Solomon four-group design
b. After-only design
c. Nonequivalent control group design
d. After-only nonequivalent control-group design
e. One-group pretest-posttest design
f. True experimental pretest-posttest group design
g. Time series design
ANS: C, D, E, G
Feedback
Correct A nonequivalent control group design is a quasi-experimental design.
After-only nonequivalent control-group design is a quasi-experimental design.
A one-group pretest-posttest design is a quasi-experimental design.
A times-series design is a quasi-experimental design.
Incorrect A Solomon four-group design is an experimental design.
An after-only design is an experimental design.
A true experimental pretest-posttest design is an experimental design.
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