Question

With regard to evaluation designs, which of the following statements is not accurate?
a. variation in the levels of treatment delivered by a program can be a major threat to the validity of even randomized evaluation studies
b. uncontrolled variation in treatment is equivalent to unreliable measurement of the independent variable
c. controlled variation in treatment represents a threat to generalizability
d. varying degrees of participation by clients in a program will impact the outcome

Answer

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