Claims

The superiority of the combined directed method held across all ability levels, with the advantage present in every section of a grouped correlation table

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 1913 · 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.

q3 i? When boys were grouped by preliminary spelling ability, the combined directed method outperformed the visual silent method in every ability group from highest to lowest, showing the advantage was not confined to strong or weak spellers. → Winch 1913

Evidence

Winch 1913

Winch, W. H. (1913). Experimental researches on learning to spell. I. The Journal of Educational Psychology. https://www.jstor.org/stable/1412810

q3 · i? · causal · r2

Table II groups the 53 boys into seven ability sections based on preliminary test scores. In every section, the average number of words correct after learning was higher for Set A (combined method) than Set B (visual silent method), from the top group (29.7 vs 29.3) to the bottom (5.5 vs 5.3).

"The regularities of this table are quite beyond the realm of 'chance,' and show a clear victory for the method employed for Set A all along the line."

Discussion

Page metadata
Field Value
type claim
id spelling-method-advantage-across-ability-levels
title The superiority of the combined directed method held across all ability levels, with the advantage present in every section of a grouped correlation table
description The superiority of the combined directed method held across all ability levels, with the advantage present in every section of a grouped correlation table
status review
evidence_strength moderate
newest_evidence 1913
generated by process:wiki-ingest on 2026-10-24
trust unverified — no one has confirmed this page's content
sources 1 — winch-1913

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