The replicability of the negative testing effect: Differences across participant populations

Area of Science:

• Cognitive Psychology
• Educational Psychology

Background:

• Memory retrieval typically enhances subsequent memory recall.
• The negative testing effect describes conditions where retrieval impairs recall, explained by disruption of organizational processing.
• Prior studies yielded conflicting results regarding the replicability of the negative testing effect.

Purpose of the Study:

• To investigate the discrepancy in findings regarding the negative testing effect.
• To determine if participant population differences explain the varying results.
• To examine the role of cognitive ability in the negative testing effect.

Main Methods:

• Two participant groups (University of North Carolina and Kent State University) completed the same negative-testing paradigm.
• Participants were assessed on cognitive abilities: working memory capacity, Raven's progressive matrices, and SAT/ACT scores.
• Free recall and category clustering (organizational processing) were measured under retrieval and restudy conditions.

Main Results:

• The negative testing effect was observed in the UNC sample (higher cognitive ability) but not in the KSU sample (lower cognitive ability).
• UNC students showed higher recall and clustering than KSU students in the restudy condition, but not the retrieval condition.
• Higher cognitive ability scores correlated with the presence of the negative testing effect.

Conclusions:

• The negative testing effect is replicable but contingent on the cognitive abilities of the participant population.
• Differences in participant cognitive abilities, not procedural variations, account for discrepant findings in the literature.
• Cognitive ability is a critical factor influencing the occurrence and magnitude of the negative testing effect.