Claims

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 · causal r1 · 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

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

Frontmatter is the page's machine-readable record — see the Schema & Guide.