Claims

Physiologically accelerated children are mentally accelerated: height correlates with mental age +0.53 for 49 girls with age held constant

Claim · All claims
Evidence · 1 study · associational r2 · q2 · i2 medium
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 i2 For 49 girls, partial correlation (with age constant) between height and mental age is +0.53, between height and weight +0.57, and between height and ar-ray +0.52, indicating physiologically accelerated girls are mentally accelerated. → Bird T. Baldwin 1922

Evidence

Bird T. Baldwin 1922

Bird T. Baldwin. (1922). The Relation Between Mental and Physical Growth. The Journal of Educational Psychology, Vol. XIII, No. 1. https://psycnet.apa.org/journals/edu/13/1/193

q2 · i2 · associational · r2

Partial-correlation analysis of height, weight, carpal-bone area and Stanford-Binet mental age for 49 girls examined at Iowa City. The printed effect size is r = +0.53 for height and mental age with age held constant (the author reports "For height and mental age the coefficient is +0.53").

"The coefficient for the group of 49 girls by the method of partial correlation (with age constant) is between height and weight +0.57; between height and ar-ray +0.52. For height and mental age the coefficient is +0.53."

Discussion

Page metadata
Field Value
type claim
id physiological-acceleration-mental-acceleration
title Physiologically accelerated children are mentally accelerated: height correlates with mental age +0.53 for 49 girls with age held constant
description Physiologically accelerated children are mentally accelerated: height correlates with mental age +0.53 for 49 girls with age held constant
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 — bird-t-baldwin-1922

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