Multiple Choice
If an evaluator judges the rate of success of a program on the basis of those who complete the program, she is likely to be failing to deal with the threat to internal validity called
A) attrition.
B) regression to the mean.
C) testing.
D) history.
Correct Answer:

Verified
Correct Answer:
Verified
Q17: The pretest/posttest design using only the program's
Q18: Evaluation designs should be selected so that<br>A)
Q19: Contrast the effects of attrition depending on
Q20: Illustrate how advances in medical technology can
Q21: Correlating the amount of service received with
Q23: Conclusion validity refers to<br>A) statistical significance.<br>B) high
Q24: The difference between the mean of the
Q25: Regression to the mean is a threat
Q26: Local history is a form of threat
Q27: The threat to internal validity (called "maturation")