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

question 22

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.

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Definitions:

Chi-squared Distributed

Pertains to a statistical distribution one typically employs to evaluate the goodness-of-fit of observed data with theoretical expectations.

Randomized Block Model

A statistical model used to remove the variability caused by known but irrelevant variables by grouping similar experimental units.

Nonparametric Counterpart

An equivalent statistical method or technique that does not assume the data follows any specific fixed distribution, often used as an alternative to traditional parametric tests.

Analysis of Variance

A statistical method used to test the difference between two or more means by examining the variances.