Claims

Normal-school students rated the same composition on a percentage basis and by the Nassau Supplement on successive days, producing distributions arranged into ten groups for comparison

Claim · All claims
Evidence · 1 study · causal r? · q1
Currency · newest study 1918 · 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.

q1 i? In a summer normal school class, 16 students rated a composition on the percentage basis and 15 of the same pupils rated the same composition by the Nassau Supplement the following day, with results arranged into ten groups for comparability. → Truman L. Kelley; Ernest C. Witham 1918

Evidence

Truman L. Kelley; Ernest C. Witham 1918

Truman L. Kelley; Ernest C. Witham. (1918). Communications and Discussions. The Journal of Educational Psychology. https://en.wikipedia.org/wiki/Journal_of_Educational_Psychology

q1 · i? · causal · r?

A small classroom exercise reported by Witham from his notes: a mixed Tests and Measurements class of 16 students rated a composition by percentage, and 15 rated "the same composition by the Nassau Supplement" the next day; the percentage ratings were arranged into ten groups.

"A mixed class on Tests and Measurements of 16 students in a summer normal school first rated on the percentage basis a composition, typewritten with all its imperfections. The following day 15 of the same pupils rated the same composition by the Nassau Supplement."

Discussion

Page metadata
Field Value
type claim
id witham-percentage-versus-nassau-ratings
title Normal-school students rated the same composition on a percentage basis and by the Nassau Supplement on successive days, producing distributions arranged into ten groups for comparison
description Normal-school students rated the same composition on a percentage basis and by the Nassau Supplement on successive days, producing distributions arranged into ten groups for comparison
status review
evidence_strength weak
newest_evidence 1918
generated by process:wiki-ingest on 2026-10-24
trust unverified — no one has confirmed this page's content
sources 1 — truman-l-kelley-ernest-c-witham-1918

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