Before intervention, treatment and control kindergartners did not differ on age, demographics, vocabulary, phoneme segmentation, letter knowledge, or reading¶
Claim · All claims
Evidence · 1 study · causalr2·q3
Currency · newest study 1994 · 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? Prior to the intervention, the 84 treatment and 75 control children did not differ on age, sex, race, SES, PPVT-R score, phoneme segmentation, letter name knowledge, letter sound knowledge, or reading. → Blachman 1994
Evidence¶
Blachman 1994¶
Blachman, B.A., Ball, E.W., Black, R.S. & Tangel, D.M. (1994). Kindergarten teachers develop phoneme awareness in low-income, inner-city classrooms. Read Writ 6, 1–18. https://doi.org/10.1007/BF01027275
q3 · i? · causal · r2
Baseline comparison of the 84 treatment and 75 control children in inner-city schools in an urban district in upstate New York. The article reports the groups "did not differ" on the listed background and preliteracy measures, establishing pretest equivalence for the intervention comparison.
"Prior to the intervention, the 84 treatment children and 75 control children, who attended inner-city schools in an urban district in upstate New York, did not differ on age, sex, race, SES, PPVT-R score, phoneme segmentation, letter name knowledge, letter sound knowledge, or reading."
Discussion¶
Related Claims¶
- An 11-week teacher-delivered phonological awareness intervention significantly improves kindergarten children's phoneme segmentation, letter knowledge, reading, and invented spelling — related
- Intervention effects of SRI did not differ by student background or ability variables — related
- Background measures show no group differences in age, intelligence, or English vocabulary, confirming group matching — related
- Chatbot and search engine classes showed no significant baseline differences in science learning ability and knowledge before the intervention — related
- Propensity score matching produced baseline-equivalent treatment and comparison groups on all measured variables — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
pretest-equivalence-phoneme-awareness-kindergarten-trial |
title |
Before intervention, treatment and control kindergartners did not differ on age, demographics, vocabulary, phoneme segmentation, letter knowledge, or reading |
description |
Before intervention, treatment and control kindergartners did not differ on age, demographics, vocabulary, phoneme segmentation, letter knowledge, or reading |
status |
review |
evidence_strength |
moderate |
newest_evidence |
1994 |
generated |
by process:wiki-ingest on 2026-10-15 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — blachman-1994 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.