Multiple Choice
A professor computes the mean difference in exam scores before and after a lecture as 9.0 ± 14.5 (MD ± SD) ,and this difference was significant.What is the effect size for this result using estimated Cohen's d?
A) d = 0.62 (medium effect)
B) d = 1.61 (medium effect)
C) d = 0.62 (large effect)
D) d = 1.61 (large effect)
Correct Answer:
Verified
Correct Answer:
Verified
Q34: Using APA format,which value is typically given
Q35: The related-samples t test is associated with
Q36: A researcher records the time (in seconds)it
Q37: A researcher selects a sample of
Q38: A researcher conditions rats to fear a
Q40: The estimated standard error for difference scores
Q41: When reporting data in a results section,it
Q42: Selecting related samples can be more practical.
Q43: The estimated Cohen's d for the related-samples
Q44: The related-samples design can _.<br>A) eliminate within-groups