The three Wilson Language Error Tests (A, B, and C) approach equality across grades III to XII¶
Claim · All claims
Evidence · 1 study · designr2·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? Combined medians for Sioux City and Duluth based on 6965 tests show Tests A, B, and C approaching equality across grades III through XII. → Wilson 1922
Evidence¶
Wilson 1922¶
Wilson, G. M. (1922). Language error tests. Journal of Educational Psychology, 13(6), 341–349. doi:10.1037/h0064444
q2 · i? · design · r2
Norming administration of the three test forms in Sioux City, Iowa, and Duluth, Minnesota, yielding combined grade medians (Table VII) and full score distributions (Tables VIII, X). The article states "It is evident from these tables that Tests A, B, and C approach equality."
"The combined medians for Sioux City and Duluth, based upon a total of 6965 tests, are shown in Table VII."
Discussion¶
Related Claims¶
- Percentage of pupils making each error runs surprisingly close across the three test forms — possibly the same claim (merge candidate)
- Twelve-year-old pupils score a median of 23 on all three test forms — a narrower finding that bears on this claim
- Tests B and C correlate 0.901 when given to the same pupils in grades III to VIII — a narrower finding that bears on this claim
- Test A contains 28 errors and Tests B and C contain 29 each, yet scores for rights are practically the same — related
- The probable error of a score on the language error tests is 2.24 — related
- Twelve-year-old pupils in upper grades show much greater test ability than those in lower grades — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
wilson-language-error-tests-equal-value |
title |
The three Wilson Language Error Tests (A, B, and C) approach equality across grades III to XII |
description |
The three Wilson Language Error Tests (A, B, and C) approach equality across grades III to XII |
status |
review |
evidence_strength |
moderate |
newest_evidence |
1922 |
generated |
by process:wiki-ingest on 2026-10-24 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — wilson-1922 |
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