GEMS® Space Science Sequence produces a statistically significant positive immediate-posttest effect on the Space Science Content test for grades 4–5 students¶
Claim · All claims
Evidence · 1 study · causalr2·q3·i1small
Currency · newest study 2012 · 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 i1 In a cluster randomized controlled trial, grades 4–5 students taught with GEMS® Space Science Sequence scored significantly higher on the Space Science Content test immediately after instruction than comparison students (effect size 0.17, improvement index +7). → rct-immediate
Evidence¶
rct-immediate¶
U.S. Department of Education, Institute of Education Sciences, What Works Clearinghouse. (2012, June). Science intervention report: Great Explorations in Math and Science® (GEMS®) Space Science Sequence. https://ies.ed.gov/ncee/wwc/InterventionReport/612
q3 · i1 · causal · r2
Cluster randomized controlled trial in central Florida (2007–08 and 2008–09): 66 intervention and 59 comparison teachers; 1,418 GEMS® students versus 1,176 comparison students. The WWC-confirmed domain average effect size was 0.17 with an improvement index of +7 and p-value 0.00, described as "statistically significant positive effects".
"Granger et al. (2010) reported, and the WWC confirmed, statistically significant positive effects of GEMS® Space Science Sequence on the Space Science Content test for students in grades 4 and 5."
Discussion¶
Related Claims¶
- The effect of GEMS® Space Science Sequence on the Space Science Content test is smaller and not statistically significant at the five-month follow-up — related
- The WWC rates GEMS® Space Science Sequence as having potentially positive effects on general science achievement, with a small extent of evidence — a broader claim this one bears on
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
gems-space-science-sequence-positive-immediate-posttest-effect |
title |
GEMS® Space Science Sequence produces a statistically significant positive immediate-posttest effect on the Space Science Content test for grades 4–5 students |
description |
GEMS® Space Science Sequence produces a statistically significant positive immediate-posttest effect on the Space Science Content test for grades 4–5 students |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2012 |
generated |
by process:wiki-ingest on 2026-10-07 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — rct-immediate |
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