Thirty to forty-eight hours of sleep loss produced no greater efficiency loss than the gain due to practice, despite reported feelings of fatigue¶
Claim · All claims
Evidence · 1 study · causalr1·q2
Currency · newest study 1922 · 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? Students deprived of sleep for thirty hours, some for forty-eight, showed efficiency loss no greater than practice gains, although they reported feelings of fatigue. → Gates 1922
Evidence¶
Gates 1922¶
Gates, Arthur I. (1922). Educational psychology at the Princeton meeting of the American Psychological Association. The Journal of Educational Psychology. https://en.wikipedia.org/wiki/Journal_of_Educational_Psychology
q2 · i? · causal · r1
Conference report of Florence R. Robinson's (University of Chicago) study in which students went without sleep for thirty hours, some for forty-eight, taking mental and motor tests at intervals; no statistics are printed.
"The loss of efficiency was no greater than the amount of gain due to practice although "feelings of fatigue" were reported."
Discussion¶
Learner Variables¶
- Physical Well-Being — predictor: learners who differ on it differ in outcomes
- Sleep — predictor: learners who differ on it differ in outcomes
Related Claims¶
- Fatigue depends on age, sex, lesson length and number, time of day, weekday, recesses, holidays, rest, sleep, nature of work, school program, and teacher personality (Offner's laws of fatigue) — related
- Efficiency in the work curve is conditioned by factors beyond fatigue proper: practice, adaptation, preparedness, warming up, spurts, voluntary effort, ennui, and diurnal rhythms (Offner) — related
- Physical well-being — exercise, sleep, and nutrition — impacts learning — related
- Frequent daytime sleepiness is associated with impaired academic achievement, attention, and learning motivation in school-aged children — reports the opposite
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
sleep-loss-efficiency-no-worse-than-practice-gain |
title |
Thirty to forty-eight hours of sleep loss produced no greater efficiency loss than the gain due to practice, despite reported feelings of fatigue |
description |
Thirty to forty-eight hours of sleep loss produced no greater efficiency loss than the gain due to practice, despite reported feelings of fatigue |
status |
review |
evidence_strength |
weak |
newest_evidence |
1922 |
generated |
by process:wiki-ingest on 2026-10-24 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — gates-1922 |
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