Directional leader–follower BtBC patterns decode instructional approach better than individual motion, with peak performance at non-zero time lags¶
Claim · All claims
Evidence · 1 study · causalr2·q2
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? Logistic regression decoded scaffolding vs explanation from time-lagged BtBC, peaking at AUC 0.79 for learner-leading (2.68 s) and instructor-leading (2.32 s) lags; individual motion failed (AUC = 0.62, p = 0.13). → Yafeng Pan 2022
Evidence¶
Yafeng Pan 2022¶
Yafeng Pan, Suzanne Dikker, Yi Zhu, Cuirong Yang, Yi Hu and Pavel Goldstein. (2022). Instructor-learner body coupling reflects instruction and learning. npj Science of Learning. https://doi.org/10.1038/s41539-022-00131-0
q2 · i? · causal · r2
Logistic-regression decoding with FDR-corrected permutation tests at 251 lags; both leader–follower directions significantly predicted the instructional approach (FDR corrected ps < 0.05). Individual motion energy "as the classification feature was insufficient to discriminate between scaffolding and explanation approaches".
"reached the highest level when the learners' body motion preceded that of the instructors by 2.68 s (AUC = 0.79, p = 6.92 * 10−4), and when the instructors' body motion preceded that of the learners by 2.32 s (AUC = 0.79, p = 6.59 * 10−4)"
Discussion¶
Related Claims¶
- Learner-leading BtBC is larger under scaffolding; instructor-leading BtBC shows only a trending effect, and instructor-leading BtBC fails to predict learning under explanation — related
- Instructor motion is positively associated with BtBC only during scaffolding, not explanation — related
- Body-to-body coupling between instructor and learner is greater during scaffolding than explanation instruction — related
- Learning outcome can be predicted from overall BtBC via support vector regression — related
- Instructors moved more when using an explanation approach than a scaffolding approach, but dyad and learner motion did not differ between approaches — related
- Learners acquire concepts better under a scaffolding approach than an explanation approach — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
btbc-decodes-instructional-approach |
title |
Directional leader–follower BtBC patterns decode instructional approach better than individual motion, with peak performance at non-zero time lags |
description |
Directional leader–follower BtBC patterns decode instructional approach better than individual motion, with peak performance at non-zero time lags |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2022 |
generated |
by process:wiki-ingest on 2026-10-26 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — yafeng-pan-2022 |
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