Claims

Phonological awareness training plus letter knowledge training has potentially positive effects on preschoolers' early reading/writing

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q2–q3 · i2 medium
Currency · newest study 2006 · 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 i2 In Gettinger (1986), the intervention group significantly outperformed the comparison group on four of five early reading/writing measures, with a study average effect size of 0.89 and improvement index +31. → What Works Clearinghouse 2006 q2 i2 In Roberts and Neal (2004), the writing outcome was not statistically significant but was large enough to be rated substantively important and positive (effect size 0.52). → What Works Clearinghouse 2006 (2)

Evidence

What Works Clearinghouse 2006

What Works Clearinghouse, U.S. Department of Education. (2006). WWC Intervention Report: Phonological Awareness Training plus Letter Knowledge Training. https://ies.ed.gov/ncee/WWC/InterventionReport/376

q3 · i2 · causal · r2

RCT with 72 children; early reading/writing was measured after the skills training during subsequent reading instruction, with effects attributed to the initial PAT+LK skills training. Appendix A3.4 reports effect sizes from 0.53 to 1.25 across training words, transfer words, short vowel, and trials-to-criterion; discrimination (0.66) was not significant.

"Gettinger (1986) reported statistically significant differences favoring the intervention group for four of five measures, and the WWC confirmed the statistical significance of these effects."

What Works Clearinghouse 2006 (2)

What Works Clearinghouse, U.S. Department of Education. (2006). WWC Intervention Report: Phonological Awareness Training plus Letter Knowledge Training. https://ies.ed.gov/ncee/WWC/InterventionReport/376

q2 · i2 · quant-synthesis · r1

RCT with reservations (high attrition) of 33 Hmong- or Spanish-speaking three- and four-year-olds in a half-day state-funded preschool; the writing measure effect size was 0.52 with an improvement index of +20, not statistically significant.

"Roberts and Neal (2004) found no statistically significant differences between the intervention group and the comparison group for a measure of writing; however, the finding was large enough to categorize the effect as substantively important and positive, according to WWC criteria."

Discussion

Page metadata
Field Value
type claim
id pat-lk-potentially-positive-early-reading-writing
title Phonological awareness training plus letter knowledge training has potentially positive effects on preschoolers' early reading/writing
description Phonological awareness training plus letter knowledge training has potentially positive effects on preschoolers' early reading/writing
status review
evidence_strength moderate
newest_evidence 2006
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 2 — what-works-clearinghouse-2006, what-works-clearinghouse-2006-2

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