Claims

Sixty-three per cent of Detroit prevocational pupils have an I.Q. below .70

Claim · All claims
Evidence · 1 study · associational r1 · 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? In the tested Detroit prevocational population, 63% of pupils rated below I.Q. .70, and only 6.81% rated between I.Q. .80 and .92. → Renshaw 1915

Evidence

Renshaw 1915

Renshaw, S. (1915). The abilities of pupils in Detroit prevocational classes. The Journal of Educational Psychology. https://www.jstor.org/journal/jeduapsy

q2 · i? · associational · r1

Intelligence testing of 308 pupils in the seven Detroit prevocational classes with the Stanford Revision of the Binet scale. The article reports that "6.81 per cent, of these cases rate between I. Q. .80 and .92" and that 63% of all pupils have an I.Q. below .70.

"But 6.81 per cent, of these cases rate between I. Q. .80 and .92."

Discussion

Page metadata
Field Value
type claim
id detroit-prevocational-63-percent-iq-below-70
title Sixty-three per cent of Detroit prevocational pupils have an I.Q. below .70
description Sixty-three per cent of Detroit prevocational pupils have an I.Q.
status review
evidence_strength moderate
newest_evidence 1915
generated by process:wiki-ingest on 2026-10-24
trust unverified — no one has confirmed this page's content
sources 1 — renshaw-1915

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