Practice that lasts
Transfer and its evidence
Transfer is the weakest link in claims about spaced repetition. Retrieval practice does have strong, meta-analytic support for transfer beyond the exact material or test used during practice. A principal review synthesized 192 effects from 122 experiments involving 10,382 participants and found an overall advantage over non-testing re-exposure controls.1
The benefit was not uniform. Transfer was strongest when test format changed, when questions required application or inference, and in medical-diagnosis problems. Successful retrieval, elaboration, and similarity between the practised response and the response later required all mattered.1 Across four experiments, undergraduates who repeatedly tested themselves on prose passages performed better one week later on retention, inference within the same domain, and inference requiring application to another domain than those who restudied.2
The evidence should be separated by what the final test actually measured.
| Evidence base | Final performance measured | Safe conclusion |
|---|---|---|
| Retrieval-practice transfer meta-analysis | Changed formats, application, inference, and diagnosis problems1 | Retrieval can transfer under favourable task conditions. |
| Four undergraduate prose experiments | Inference within and beyond the studied domain after one week2 | Benefits can extend beyond repeating the same answer. |
| Health-professions spaced-education review | Clinical-behavior estimates based on three studies3 | Evidence for specified professional behavior is limited. |
| Six-month ultrasound-image trial | Accuracy on image tests, not bedside scanning4 | Improved image interpretation does not establish bedside performance. |
This distinction matters because retrieval-practice experiments are not randomised comparisons of ordinary flashcard scheduling systems on unscripted work. A scheduler records the card, its timing, and the learner’s reported result. The transfer test may instead require selecting a cue, coordinating several facts, acting under pressure, or producing a response that no card requested.
With twenty minutes, use some time for retrieval, then practise under cues resembling the target activity. A language learner can answer cards and also attempt conversation. A clinician can retrieve image features and also perform a real or simulated scan. These additions test whether retained knowledge is reachable and usable when the prompt changes.
Boundary. Retrieval-practice transfer is supported. Direct transfer from flashcard scheduling systems to patient outcomes, job performance, spontaneous conversation, or creative work has not been established by the cited evidence. Retaining practised knowledge must not be presented as equivalent to applying it under materially different conditions.
Quellen
Quizze
A clinician practises with scheduled ultrasound-image questions. Evidence of unscripted target performance would be ____.
- performing and interpreting a bedside scan during patient care
- interpreting unfamiliar ultrasound images on a delayed test
- solving new diagnostic questions using related clinical cues
Delayed image interpretation and new diagnosis questions can show retention or transfer. Bedside scanning additionally tests cue selection, equipment use, and action in context.
A learner improves on scheduled ultrasound-image questions. What would best test transfer beyond those questions?
- Assess performance during a real or simulated bedside scan
- Complete more image questions using the same card cues
- Request a confidence rating after another review session
Image-test accuracy measures one component. Bedside assessment tests whether that knowledge transfers to selecting views, handling equipment, and interpreting the situation.
Kommentare
Noch keine Kommentare. Fang das Gespräch an.