Multiple Choice
Statistical regression, as a threat to internal validity, refers to:
A) The shift of statistical significance as the number of participants increase
B) The tendency of modal responses to move away from the center of the distribution
C) The inability of certain designs to detect statistically significant difference, should they exist
D) The tendency of extreme scores to move toward the mean of the distribution when a measure is readministered
Correct Answer:

Verified
Correct Answer:
Verified
Q5: Why is it important to use a
Q6: The primary problem with using a pretest
Q7: An example of the instrumentation threat to
Q8: Internal validity is best defined as:<br>A) The
Q9: Failing to generalize results to other populations
Q10: Which of the following is NOT a
Q11: External validity is mostly concerned with:<br>A) The
Q13: Reducing possible threats to internal validity will
Q14: What is the best way to reduce
Q15: The timing of measurement e.g., pretest, posttest,