Multiple Choice
A regression threat to internal validity refers to the fact that:
A) groups selected at extremes will score closer to the average on retesting
B) students often forget what they learned during an intervention
C) a relationship is likely to be smaller when a study is replicated
D) data collectors can influence scores by their behavior
Correct Answer:

Verified
Correct Answer:
Verified
Q10: Which of the following is a question
Q11: When the same questionnaire is scored for
Q12: A history threat to internal validity refers
Q13: Which threat would not apply to a
Q14: Matching<br>-History threat<br>A) Age, gender, and class<br>B) Unreturned
Q16: Which of the following is the best
Q17: To avoid a possible implementation threat, a
Q18: The Hawthorne effect deals with subjects who
Q19: Matching<br>-Mortality threat<br>A) Age, gender, and class<br>B) Unreturned
Q20: Students with low, average, and high scores