The Thorndike-McCall correlates about 0.50 with other single comprehension tests and 0.69 with a composite of group intelligence tests¶
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Evidence · 1 study · associationalr2·q3·i3large
Currency · newest study 1921 · checked against its sources 2026-10-24 (automated, 1 of 1 entry) · not reviewed by a person
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q3 i3 The Thorndike-McCall yields correlations of about 0.50 with almost any other single comprehension test, 0.50 with vocabulary tests, 0.57 with an oral reading test, and a mean of 0.69 with composites of group intelligence tests. → Arthur I. Gates 1921
Evidence¶
Arthur I. Gates 1921¶
Arthur I. Gates. (1921). An Experimental and Statistical Study of Reading and Reading Tests (Continued). The Journal of Educational Psychology. https://doi.org/10.1037/h0068367
q3 · i3 · associational · r2
Correlational survey of the Thorndike-McCall against other reading tests and intelligence composites (Table VIII). Printed correlations include r = 0.50 with single comprehension tests, r = 0.50 with vocabulary tests, and r = 0.57 with an oral reading test; the mean correlation with group intelligence composites is 0.69.
"It yields a correlation of 0.50 with almost any other single test of comprehension except the Brown, and a somewhat smaller coefficient with single measures of rate. It yields correlations of 0.50 with vocabulary tests and 0.57 with an oral reading test."
Discussion¶
Related Claims¶
- The Burgess test correlates more highly with rate and comprehension composites (0.82 and 0.80) than any other single test, and pairs well with the Thorndike-McCall — related
- Rate and comprehension composites of silent reading tests correlate 0.84 in elementary grades — related
- Correlations of reading tests with Stanford mental age rise steeply from grade III to grade VI — related
- Case evidence suggests the Thorndike-McCall diagnoses comprehension power unaffected by reading mechanics, as in a slow reader of above-125 IQ scoring at grade level — related
- Vocabulary test scores correlate about 0.6 with reading comprehension but are not an adequate measure of it — related
- Clement's five group intelligence tests intercorrelated only modestly, with the Indiana Mental Survey below 0.40 against all others — related
- School subjects intercorrelate lowly except reading comprehension with reading rate (0.85) — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
thorndike-mccall-correlations-comprehension-intelligence |
title |
The Thorndike-McCall correlates about 0.50 with other single comprehension tests and 0.69 with a composite of group intelligence tests |
description |
The Thorndike-McCall correlates about 0.50 with other single comprehension tests and 0.69 with a composite of group intelligence tests |
status |
review |
evidence_strength |
moderate |
newest_evidence |
1921 |
source_checked |
2026-10-24 |
generated |
by process:wiki-ingest on 2026-10-24 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — arthur-i-gates-1921 |
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