Claims

Sleepy behaviors (eyes closed, head down) showed medium-sized but non-significant effects of sleep restriction

Claim · All claims
Evidence · 1 study · causal r1 · q3 · i2 medium
Currency · newest study 2010 · 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.

q3 i2 Medium-sized effects for eyes-closed and head-down behaviors (d=.49–.50) did not reach statistical significance, likely due to limited power. → Beebe 2010

Evidence

Beebe 2010

Beebe, D. W., Rose, D., & Amin, R. (2010). Attention, Learning, and Arousal of Experimentally Sleep-Restricted Adolescents in a Simulated Classroom. The Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2010.03.005

q3 · i2 · causal · r1

Secondary coded behaviors in the video-monitored subset (n=8): yawning, eye rubbing, eyes closed, head on table for ≥3 consecutive seconds. The authors report "the medium-sized effects for “Eyes Closed” and “Head down” (d=.49–.50; Figure 1)" were not statistically significant.

"Although not statistically significant, the medium-sized effects for “Eyes Closed” and “Head down” (d=.49–.50; Figure 1) may have reached significance in a larger sample."

Discussion

Page metadata
Field Value
type claim
id sleepy-behaviors-nonsignificant-medium-effects
title Sleepy behaviors (eyes closed, head down) showed medium-sized but non-significant effects of sleep restriction
description Sleepy behaviors (eyes closed, head down) showed medium-sized but non-significant effects of sleep restriction
status review
evidence_strength weak
newest_evidence 2010
generated by process:wiki-ingest on 2026-10-17
trust unverified — no one has confirmed this page's content
sources 1 — beebe-2010

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