Multiple Choice
Diffusion or imitation of the program by people in a non-treatment control group tends to
A) make an effective program look less effective than it is.
B) make an ineffective program look more effective than it is.
C) make a good program appear to have a negative impact.
D) nullify the effects of attrition from control groups.
Correct Answer:

Verified
Correct Answer:
Verified
Q19: When services or medical treatments are offered
Q20: Usually a new program cannot be implemented
Q21: Describe the threats to internal validity that
Q22: When an evaluator recognizes a potential threat
Q23: When an outcome evaluation is designed as
Q25: The use of pretests in an experimental
Q26: Pretests are recommended even when the evaluation
Q27: Distinguish the internal validity threat of history
Q28: Describe the reasons that program staff often
Q29: Although some quasi-experimental designs are fairly effective