Claims

Group-scale scores correlate moderately with teachers' ability rankings of first- to third-grade pupils

Claim · All claims
Evidence · 1 study · associational r1 · q2 · i3 large
Currency · newest study 1919 · 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 i3 Seventeen correlations between group test scores and teachers' rankings of pupils by ability averaged .47. → Pressey 1919

Evidence

Pressey 1919

Pressey, L. W. (1919). A Group Scale of Intelligence for Use in the First Three Grades. The Journal of Educational Psychology. https://doi.org/10.1037/h0072897

q2 · i3 · associational · r1

Validity analysis in City C comparing the group scale against rankings collected from all teachers except some substitutes. The article prints an average correlation of r = .47 between test scores and teachers' ability rankings.

"Seventeen correlations were obtained between the test scores and teachers rankings of pupils according to ability; these rankings were obtained from all teachers in City C, except from some few substitutes who did not know the children well. The average correlation was .47."

Discussion

Page metadata
Field Value
type claim
id group-scale-correlates-teacher-rankings-primary
title Group-scale scores correlate moderately with teachers' ability rankings of first- to third-grade pupils
description Group-scale scores correlate moderately with teachers' ability rankings of first- to third-grade pupils
status review
evidence_strength moderate
newest_evidence 1919
generated by process:wiki-ingest on 2026-10-25
trust unverified — no one has confirmed this page's content
sources 1 — pressey-1919

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