Psycho-motor capacity as measured by the form board increases at every age from two to seventeen¶
Claim · All claims
Evidence · 1 study · associationalr1·q2
Currency · newest study 1915 · 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? Form-board performance improves at every age investigated from two to seventeen, disproving claims that improvement stops at age 12 or 14, and the authors indicate development likely continues beyond 17. → Wallin 1915
Evidence¶
Wallin 1915¶
Wallin, J. E. W. (1915). Age Norms of Psycho-Motor Capacity. The Journal of Educational Psychology. https://search.worldcat.org/search?q=Age+Norms+of+Psycho-Motor+Capacity
q2 · i? · associational · r1
Analysis of form-board records of over 4000 bright, average, dull, feeble-minded, and epileptic children, summarized in the article's enumerated conclusions. The author states the increase holds "for every age investigated from two to seventeen" and notes development appears to continue beyond 17, though how far is undetermined.
"First, there is an increase in psycho-motor capacity as measured by this test for every age investigated from two to seventeen (see the Graphs). This disproves the statement that there is no improvement after the age of 12 or 14."
Discussion¶
Related Claims¶
- Published form-board age norms differ markedly across investigators, yielding discrepant diagnoses — related
- The fairest single index of form-board psycho-motor efficiency is the best record in three trials — related
- Psycho-motor capacity varies with grade of intelligence, with epileptic children responding most slowly — related
- Cool executive function measures show ascending age-related growth across adolescence, with a growth spurt around age 14–15 — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
psychomotor-capacity-increases-ages-2-17 |
title |
Psycho-motor capacity as measured by the form board increases at every age from two to seventeen |
description |
Psycho-motor capacity as measured by the form board increases at every age from two to seventeen |
status |
review |
evidence_strength |
moderate |
newest_evidence |
1915 |
generated |
by process:wiki-ingest on 2026-10-23 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — wallin-1915 |
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