Claims

Element-difficulty analysis shows the Spelling Test too easy and Arithmetic problems falling into two difficulty groups for this sample

Claim · All claims
Evidence · 1 study · design r2 · q2
Currency · newest study 1917 · 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? Ranking test elements by number of failures shows the Spelling Test too easy, the Synonym Test somewhat too easy, and Arithmetic problems bimodal in difficulty. → Arthur S. Otis 1917

Evidence

Arthur S. Otis 1917

Arthur S. Otis. (1917). An Absolute Point Scale for the Group Measurement of Intelligence.—Part II. The Journal of Educational Psychology. https://doi.org/10.1037/h0074753

q2 · i? · design · r2

Numerical analysis of failure counts per element for the Spelling, Arithmetic, Synonyms, Proverbs, and Relation Tests, shown in Fig. 3. The author reports "the Spelling Test is too easy for this group of individuals," that Synonyms are somewhat too easy, and that Arithmetic problems fall into two distinct difficulty groups.

"It is apparent from this as well as other sources that the Spelling Test is too easy for this group of individuals."

Discussion

Page metadata
Field Value
type claim
id element-difficulty-distributions-five-tests
title Element-difficulty analysis shows the Spelling Test too easy and Arithmetic problems falling into two difficulty groups for this sample
description Element-difficulty analysis shows the Spelling Test too easy and Arithmetic problems falling into two difficulty groups for this sample
status review
evidence_strength weak
newest_evidence 1917
generated by process:wiki-ingest on 2026-10-24
trust unverified — no one has confirmed this page's content
sources 1 — arthur-s-otis-1917

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