Claims

Two 100-word dictionary-sampled spelling lists administered to the same pupil yield scores agreeing within a mean variation of 2.2 points

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 1910 · 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? A pupil's spelling ability can be ascertained quite accurately by any two of the six lists, with a mean variation between scores of 2.2 points based on 519 pupils. → Starch 1910

Evidence

Starch 1910

Starch, D. (1910). The Measurement of Efficiency in Spelling, and the Overlapping of Grades in Combined Measurements of Reading, Writing and Spelling. The Journal of Educational Psychology. https://eric.ed.gov/?q=The+Measurement+of+Efficiency+in+Spelling

q2 · i? · associational · r2

Reliability analysis of the author's six-list spelling test: repeated testing of the same pupils with two different lists on successive days showed an average deviation between the two scores of 2.2 points, which the author calls "close agreement"; sample records for fourth-grade pupils on lists 1 and 5 are tabulated.

"On the basis of tests made with 519 pupils, the mean variation between the scores from any two of the six lists is 2.2 points."

Discussion

Page metadata
Field Value
type claim
id two-spelling-lists-mean-variation-2-2-points
title Two 100-word dictionary-sampled spelling lists administered to the same pupil yield scores agreeing within a mean variation of 2.2 points
description Two 100-word dictionary-sampled spelling lists administered to the same pupil yield scores agreeing within a mean variation of 2.2 points
status review
evidence_strength moderate
newest_evidence 1910
generated by process:wiki-ingest on 2026-10-24
trust unverified — no one has confirmed this page's content
sources 1 — starch-1910

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