Claims

Fidelity of implementation of early language curricula varies widely across teachers and studies

Claim · All claims
Evidence · 1 study (2 entries) · qualitative r2 · q2
Currency · newest study 2021 · 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? Prior studies of pre-k language and literacy curricula report substantial variability in adherence (e.g., 76–82% average; 79–93% range; one study averaging 38% of core targets) and dosage (73% of intended lessons). → Tricia A. Zucker 2021 q2 i? Across the three Developing Talkers studies, total adherence improved to near 90% but dosage declined from 96.78% to 73.17% of lessons delivered between Studies 2 and 3. → Tricia A. Zucker 2021 (2)

Evidence

Tricia A. Zucker 2021

Tricia A. Zucker, Erin Jacbos & Snyder & Sonia Q. Cabell (2021). Exploring Barriers to Early Childhood Teachers' Implementation of a Supplemental Academic Language Curriculum. Early Education and Development. https://doi.org/10.1080/10409289.2020.1839288

q2 · i? · qualitative · r?

Narrative synthesis of prior fidelity studies reported in this article's literature review; it attributes findings to Piasta et al. (2015), Justice et al. (2009), and Dickinson (2011), noting one study's low FOI was a possible explanation for lack of significant student impacts.

"In early childhood settings, Piasta et al. (2015) examined teacher FOI of a pre- kindergarten (pre-k) language and literacy curriculum and found substantial variability in adherence to components of each lesson, averaging 76–82% adherence."

Tricia A. Zucker 2021 (2)

Tricia A. Zucker, Erin Jacbos & Sonia Q. Cabell (2021). Exploring Barriers to Early Childhood Teachers' Implementation of a Supplemental Academic Language Curriculum. Early Education and Development. https://doi.org/10.1080/10409289.2020.1839288

q2 · i? · qualitative · r2

Summary of adherence, dosage, and satisfaction data across the three Developing Talkers studies (Table 4); the article notes considerable heterogeneity in lessons implemented in Study 3 (M = 122.20, SD = 34.96) while teacher satisfaction stayed high (Range = 3.32 to 3.78 on a 4-point scale).

"Dosage declined substantially from the second study's high level of 96.78% to third study with only 73.17% of lessons delivered."

Discussion

Page metadata
Field Value
type claim
id wide-variability-foi-early-language-curricula
title Fidelity of implementation of early language curricula varies widely across teachers and studies
description Fidelity of implementation of early language curricula varies widely across teachers and studies
status review
evidence_strength moderate
newest_evidence 2021
generated by process:wiki-ingest on 2026-09-27
trust unverified — no one has confirmed this page's content
sources 2 — tricia-a-zucker-2021, tricia-a-zucker-2021-2

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