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Why do people show minimal knowledge updating with task experience: inferential deficit or experimental artifact?
Christopher Hertzog1, Jodi Price, Ailis Burpee
1School of Psychology, Georgia Institute of Technology, Atlanta, GA 0332-0170, USA. christopher.hertzog@psych.gatech.edu
Quarterly Journal of Experimental Psychology (2006)
|July 9, 2008
Summary
Students struggle to accurately assess learning strategy effectiveness, even when one strategy like imagery clearly outperforms rote repetition. This study reveals deficits in updating knowledge about strategy efficacy after experiencing different learning methods.
Area of Science:
- Cognitive Psychology
- Educational Psychology
- Metacognition
Background:
- Learners often lack accurate knowledge regarding the effectiveness of different learning strategies.
- Research indicates that strategies like imagery are more effective than rote repetition for learning.
- Despite superior performance with certain strategies, learners' beliefs about their efficacy may not update accurately.
Purpose of the Study:
- To investigate why learners fail to update their knowledge about learning strategy effectiveness.
- To determine if deficits in knowledge updating are due to experimental artifacts or flawed inferential processes.
- To examine the role of metacognitive judgments in understanding strategy effects.
Main Methods:
- Two experiments were conducted using paired-associate learning.
- Participants studied word pairs using either imagery or rote repetition across two study-test trials.
- Metacognitive judgments were collected to assess inferential processes and knowledge gains regarding strategy effectiveness.
Main Results:
- Participants showed substantially greater recall for imagery compared to rote repetition on List 1.
- Predictions for List 2 performance did not significantly differ between the two strategies, indicating poor knowledge updating.
- Noncompliance with strategy instructions was ruled out as an artifactual explanation.
- Interventions to improve data availability for inferential processes partially improved, but did not fully resolve, knowledge updating deficits.
Conclusions:
- Learners exhibit deficits in updating their beliefs about learning strategy effectiveness, even when objective performance data suggests otherwise.
- Inaccurate inferences, rather than experimental artifacts like noncompliance, appear to be a primary cause of poor knowledge updating.
- While supporting inferential processes can help, fully repairing knowledge updating about strategy effectiveness remains a challenge.
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