Multiple Choice
When an evaluator recognizes a potential threat to the internal validity of an evaluation,
A) it may be impossible to control for it short of randomization.
B) correlational designs are needed.
C) using just one group would permit the threat to be ignored.
D) a pretest/posttest design can be used.
Correct Answer:

Verified
Correct Answer:
Verified
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Q18: Whenever preexisting, intact groups are used for
Q19: When services or medical treatments are offered
Q20: Usually a new program cannot be implemented
Q21: Describe the threats to internal validity that
Q23: When an outcome evaluation is designed as
Q24: Diffusion or imitation of the program by
Q25: The use of pretests in an experimental
Q26: Pretests are recommended even when the evaluation
Q27: Distinguish the internal validity threat of history