Roediger and Karpicke (2006) Studied Performance on a Memory Test

Multiple Choice

Roediger and Karpicke (2006) studied performance on a memory test in two groups of participants. In one group, participants studied the material twice (study-study) . In the other group, participants studied the material once and then were tested on the material (study-test) . A final test measuring recall was administered in both groups after various retention intervals. Which statement about performance on the final test is true?

A) Recall was better in the study-test group at all retention intervals.
B) Recall was better in the study-study group at all retention intervals.
C) Recall was better in the study-test group at long retention intervals.
D) Recall was better in the study-test group at short retention intervals.