Evidence map›Paper›PMID 35081944›Full record

ArticleBMC medical education2022

Retrieval practice and spaced learning: preventing loss of knowledge in Dutch medical sciences students in an ecologically valid setting.

Stijn C M Donker, Marc A T M Vorstenbosch, Martin J T Gerhardus, Dick H J Thijssen

Abstract read
In one paragraph

Article in BMC medical education, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Stijn C M DonkerRadboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Philips van Leydenlaan 15, 6525 EX, Nijmegen, The Netherlands.ORCID https://orcid.org/0000-0002-8019-8699
Marc A T M VorstenboschRadboud Institute for Health Sciences, Department of Anatomy, Radboud University Medical Center, Nijmegen, The Netherlands.ORCID https://orcid.org/0000-0002-8904-8400
Martin J T GerhardusRadboud Institute for Health Sciences, Department of Primary and Community Care, Radboud University Medical Center, Nijmegen, The Netherlands.ORCID https://orcid.org/0000-0001-8093-8880
Dick H J ThijssenRadboud Institute for Health Sciences, Department of Physiology, Radboud University Medical Center, Philips van Leydenlaan 15, 6525 EX, Nijmegen, The Netherlands. Dick.Thijssen@radboudumc.nl.ORCID https://orcid.org/0000-0002-7707-5567

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionKnowledge, once acquired, degrades over time. Exams that contain questions related to previously acquired knowledge ('retrieval practice questions') may promote retrieval practice and spaced learning, and subsequently prevent knowledge loss. To investigate this hypothesis, we compare the score of retrieval practice questions to regular questions in exams of a two-year (bio)medical study program.

methodsThe two-year "Mechanisms of Health and Disease"-program for biomedical sciences and medical students in Nijmegen (the Netherlands) contains 14 spaced exams of 80 questions each. The percentages of correct-, false-, and non-answers were compared between regular questions and retrieval practice questions. Using Pearson correlations between question scores and exam scores (RiT-values), the impact of retrieval practice questions on the internal consistency of exams was determined. Mixed model analyses determined changes in outcomes across time.

resultsAnalysis of 2006 regular questions and 1728 retrieval practice questions revealed a significantly higher percentage of correct and false answers, and a significantly lower percentage of non-answers, in retrieval practice questions versus regular questions (all P < 0.05). Scores did not change across time. RiT-values were slightly lower in retrieval practice questions, with a small inverse trend across time.

conclusionOur data indicate preservation of knowledge, possibly related to retrieval practice and/or spaced learning. Although the RiT-values of retrieval practice questions were slightly lower than those of regular questions, the discriminative capacity was well within acceptable range. These data highlight the potency of retrieval practice questions to prevent knowledge decrement, without altering exam quality.

Indexed as

Students, MedicalCurriculumEducational MeasurementHumansKnowledgeLearningKnowledge retentionMedical educationProgress testingRetrieval practiceSpaced learningThe forgetting curve

Identifiers

PMID35081944
PMCPMC8793259

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.