Multiple Choice
Internal validity refers to whether
A) a statistically significant change occurred.
B) Type II errors occurred.
C) a research design provides sufficient control that one can learn whether the program caused a change in an outcome.
D) the findings can be generalized to other similar groups.
Correct Answer:

Verified
Correct Answer:
Verified
Q9: The threat to internal validity called "instrumentation"
Q10: Explain which threats to internal validity need
Q11: Repeatedly dividing the sample on the basis
Q12: Pretest-posttest designs permit the evaluator to learn
Q13: The fact that people who choose to,
Q15: Consider a program to assist new parents
Q16: Retrospective pretests were developed to be sensitive
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