Claims

Initial levels of vocabulary and social communication skills each predict kindergarten reading achievement, but only rate of growth in social communication skills incrementally predicts reading

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2020 · 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? Initial levels of vocabulary (β = .27, p < .01) and social communication skills (β = .31, p < .001) each predicted better kindergarten reading, and rate of growth in social communication skills (β = .33, p < .001) but not vocabulary growth (β = .10, p = .18) predicted reading. → Ramsook K. Ashana 2020

Evidence

Ramsook K. Ashana 2020

Ramsook K. Ashana, Welsh Janet A., Bierman Karen L. (2020). What you say, and how you say it: Preschoolers' growth in vocabulary and communication skills differentially predict kindergarten academic achievement and self‐regulation. Social Development, 29(3), 783–800. https://doi.org/10.1111/sode.12425

q3 · i? · associational · r2

Two-stage multilevel modeling of three waves of data from 164 Head Start children, controlling for baseline reading, age, sex, SES, cohort, and classroom nesting. The full model showed "Rate of growth in social communication skills (β = .33, SE = .55, p < .001)" predicted reading while vocabulary growth did not.

"Initial levels of vocabulary (β = .27, SE = .01, p < .01) and social communication skills (β = .31, SE = .19, p < .001) each predicted better reading achievement at Wave 3. Rate of growth in social communication skills (β = .33, SE = .55, p < .001), but not growth in vocabulary (β = .10, SE = .06, p = .18) predicted reading achievement at Wave 3."

Discussion

Page metadata
Field Value
type claim
id social-communication-growth-uniquely-predicts-kindergarten-reading
title Initial levels of vocabulary and social communication skills each predict kindergarten reading achievement, but only rate of growth in social communication skills incrementally predicts reading
description Initial levels of vocabulary and social communication skills each predict kindergarten reading achievement, but only rate of growth in social communication skills incrementally predicts reading
status review
evidence_strength moderate
newest_evidence 2020
generated by process:wiki-ingest on 2026-10-17
trust unverified — no one has confirmed this page's content
sources 1 — ramsook-k-ashana-2020

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