No difference in alpha power between student-driven group work and independent work¶
Claim · All claims
Evidence · 1 study · causalr1·q2·i0negligible
Currency · newest study 2021 · 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 i0 Alpha power did not differ significantly between group work (M = 1.78) and independent work (M = 1.80), r = 0.02, a negligible effect size. → Jennie K. Grammer 2021
Evidence¶
Jennie K. Grammer 2021¶
Jennie K. Grammer, Keye Xu and Agatha Lenartowicz. (2021). Effects of context on the neural correlates of attention in a college classroom. npj Science of Learning 6:15. https://doi.org/10.1038/s41539-021-00094-8
q2 · i0 · causal · r1
EEG planned contrast from the classroom study. "no differences were observed between student-driven group work and independent work"; r = 0.02 is a printed negligible effect size; equivalence was not formally tested.
"whereas no differences were observed between student-driven group work ( MGroup = 1.78) and independent work (MIndependent= 1.80, b = 0.01, t(55) = 0.14, p = 0.89, r = 0.02)"
Discussion¶
Related Claims¶
- Student attention, indexed by occipital alpha power, is lower during teacher-initiated activities (lecture, video) than student-initiated activities (group work, independent work) in a college classroom — related
- Time-related changes in attention within activities occurred only during independent work, not across the other activities — related
- Observer ratings diverged from neural measures: behavioral ratings showed no teacher-initiated versus student-initiated difference and rated group work as more inattentive than independent work — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
no-alpha-difference-group-vs-independent-work |
title |
No difference in alpha power between student-driven group work and independent work |
description |
No difference in alpha power between student-driven group work and independent work |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2021 |
generated |
by process:wiki-ingest on 2026-10-26 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — jennie-k-grammer-2021 |
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