Examining Increasing Playback Speed in Recorded Lectures on Memory, Attention, and Experience
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Recorded lectures represent a popular means of delivering educational content. These lectures afford increasing the playback speed which could be used to reduce time demands and increase the likelihood that a lecture is consumed. In two experiments (N = 320), we examined the impact of increasing the playback speed of lectures across a range of speeds on memory for the lecture material, mind wandering, and the learner’s experience of the lecture. For speeds up until 2x, findings revealed no significant differences in memory for the material, mind wandering, and learner’s subjective experience of the lecture, with the exception that “enjoyment of speed” decreased as speed increased. Beyond a speed of 2x, however, significant impairments in memory for the lecture material and decreases in liking toward both the video lecture and the speed were observed. Moreover, the increase in mind wandering with time on task often observed in recorded lectures was not modulated by lecture playback speed. These results reinforce extant results in the literature on the effects of increasing playback speed on memory for lecture material and add new insights in terms of this strategy’s influence on mind wandering and learner’s subjective experience of the lecture.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it