In the grade 12 quasi-experimental evaluation, there was no statistically significant difference in achievement between ERWC and comparison students for either the Non-PT ICA or the PT ICA sample¶
Claim · All claims
Evidence · 1 study · causalr?·q2
Currency · newest study 2022 · 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? The grade 12 quasi-experimental evaluation detected no statistically significant achievement difference between students enrolled in ERWC and students enrolled in the comparison English course, for both the Non-PT ICA and PT ICA samples. → Fong 2022
Evidence¶
Fong 2022¶
Fong, A., Porterfield, A., Skjoldhorne, S., & Hadley, L. (2022). Expanding the Expository Reading and Writing Curriculum: An evaluation of an Investing in Innovation Validation grant. WestEd. https://www.wested.org/resources/expanding-the-erwc-evaluation/
q2 · i? · causal · r?
Quasi-experimental design used in grade 12 because students could not be randomly assigned, given that the grade 12 English course could affect CSU course eligibility. The report found "no statistically significant difference" for either sample; no effect size is printed.
"In the grade 12 impact evaluation there was no statistically significant difference in achievement between students who had enrolled in the ERWC and students who had enrolled in the comparison English course; this was true for both study samples—those who took the Non-PT ICA and those who took the PT ICA."
Discussion¶
Related Claims¶
- Assignment to the ERWC 3.0 in grade 11 produced a positive, statistically significant impact on achievement on the Non-PT ICA, but no statistically significant impact on the Summative Assessment sample — related
- The positive ERWC impact on EPT scores is robust to sensitivity analyses varying matching methods and analytic sample composition — related
- Baseline pre-assessment scores showed no statistical differences between treatment and control groups in either the matched or baseline sample. — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
grade-12-erwc-no-significant-impact |
title |
In the grade 12 quasi-experimental evaluation, there was no statistically significant difference in achievement between ERWC and comparison students for either the Non-PT ICA or the PT ICA sample |
description |
In the grade 12 quasi-experimental evaluation, there was no statistically significant difference in achievement between ERWC and comparison students for either the Non-PT ICA or the PT ICA sample |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2022 |
generated |
by process:wiki-ingest on 2026-10-09 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — fong-2022 |
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