Claims

For short maze problems, massed learning effort is more economical than distributed effort in trials, time and errors, for both rats and human adults

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 1921 · 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? Provided the maze problem is short, massed effort is more economical than distributed effort whether economy is measured in trials, time or errors. → Pechstein 1921 q2 i? The massed advantage holds for both groups of rats and groups of human adults learning the maze sections. → Pechstein 1921

Evidence

Pechstein 1921

Pechstein, L. A. (1921). Massed vs. Distributed Effort in Learning. The Journal of Educational Psychology. https://doi.org/10.1037/h0070137

q2 · i? · causal · r1

Table I reports mean trials, time and errors for two groups of rats (nine per group) and two groups of humans (six per group) learning Maze A by the part method under distributed versus massed conditions, with massed records lower in each section. The author concludes it is "more economical to mass learning effort than to distribute it".

"First, provided the maze problem is short, it is more economical to mass learning effort than to distribute it, irrespective whether economy is estimated in terms of trials, time or errors."

Discussion

Page metadata
Field Value
type claim
id short-problems-massed-effort-more-economical
title For short maze problems, massed learning effort is more economical than distributed effort in trials, time and errors, for both rats and human adults
description For short maze problems, massed learning effort is more economical than distributed effort in trials, time and errors, for both rats and human adults
status review
evidence_strength moderate
newest_evidence 1921
generated by process:wiki-ingest on 2026-10-23
trust unverified — no one has confirmed this page's content
sources 1 — pechstein-1921

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