Some poor quasi-experimental designs have only one level so no comparisons can be made.
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Q15: Problems with the weak pretest-posttest quasi-experimental design
Q16: The strength of a pretest-posttest quasi-experimental design
Q17: Time series designs:
A) Are useful when there
Q18: There is increased confidence that random assignment
Q19: A pretest-posttest control group design should be
Q21: Poor quasi-experimental designs have an attribute IV
Q22: The one-group posttest-only design can provide pilot
Q23: Internal validity is threatened with the one-group
Q24: Adding more DVs will increase the value
Q25: Nonequivalence of groups does not affect the
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