One small evaluation of Achieve3000 found positive effects on the SRI but not Terra Nova (average effect size +0.16)¶
Claim · All claims
Evidence · 1 study · causalr?·q2·i1small
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 i1 A small evaluation found positive effects on the SRI but not Terra Nova, with an average effect size of +0.16. → Achieve3000 2021
Evidence¶
Achieve3000 2021¶
Achieve3000. (2021). Achieve3000 evidence rating and program description. https://www.achieve3000.com
q2 · i1 · causal · r?
A small evaluation reported in the Program Outcomes section found "positive effects on the SRI but not Terra Nova (average effect size = +0.16)." This single study qualified the program for the Promising category under the Evidence Standards.
"One small evaluation of Achieve3000 found positive effects on the SRI but not Terra Nova (average effect size = +0.16)."
Discussion¶
Related Claims¶
- Across three studies of Achieve3000 (35,070 students), the average effect size was 0.00 — a broader claim this one bears on
- Tracey and Young (2004): grade 5 students using differentiated KidBiz3000® outscored comparison students on the SRI (effect size 0.29) — related
- Comprehension domain: one study found a substantively important positive effect and one an indeterminate effect — related
- Achieve3000 use shows significant positive effects on Total Reading Scores for sixth and ninth graders, with a weighted average effect size of +0.29 — related
- General literacy achievement domain: one statistically significant positive effect and one indeterminate effect yield a potentially positive rating — related
- WWC rates Achieve3000® as having potentially positive effects on comprehension and general literacy achievement for adolescent readers — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
achieve3000-small-study-positive-sri |
title |
One small evaluation of Achieve3000 found positive effects on the SRI but not Terra Nova (average effect size +0.16) |
description |
One small evaluation of Achieve3000 found positive effects on the SRI but not Terra Nova (average effect size +0.16) |
status |
review |
evidence_strength |
weak |
newest_evidence |
2021 |
generated |
by process:wiki-ingest on 2026-10-09 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — achieve3000-2021 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.