Multivariate ANOVAs showed a significant time-of-measurement by condition interaction on fractions scores in both countries¶
Claim · All claims
Evidence · 1 study · causalr2·q2
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person
Design limits · Mavrikis 2022: groups were assigned but students were analysed as independent (read from the study by two models, 2026-10-29)
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? Two-way 2 (condition) × 2 (time) multivariate ANOVAs with repeated measures found significant effects for time, condition, and their interaction in both Germany and the UK. → Mavrikis 2022
Evidence¶
Mavrikis 2022¶
Mavrikis, M., Rummel, N., Wiedmann, M., Loibl, K., & Holmes, W. (2022). Combining exploratory learning with structured practice educational technologies to foster both conceptual and procedural fractions knowledge. Education Tech Research Dev, 70, 691–712. https://doi.org/10.1007/s11423-022-10104-0
q2 · i? · causal · r2
Omnibus multivariate tests using Pillai's trace: Germany time × condition V = .109, F(2,148) = 9.068, p < .001; UK V = .144, F(2,118) = 7.604, p < .001, per Table 2.
"Two-way, 2 (condition: ITS & ELE or ITS only) × 2 (time of measurement: pre-test or post-test) multivariate ANOVAs with repeated measures on the time variable and conceptual and procedural subscale scores as the two dependent measures were conducted for each country separately. We found significant effects for each factor and their interaction."
Discussion¶
Related Claims¶
- In the German study, students using the combined ITS & ELE condition showed significant conceptual learning gains while the ITS-only condition did not — a narrower finding that bears on this claim
- Procedural learning gains did not differ significantly between the combined and ITS-only conditions in either country — related
- Group differences in fraction comparison accuracy persist when full scale IQ is included as a covariate — related
- Repeated measures ANOVA shows significant time-of-testing effect and significant time-by-group interaction on word-problem scores — related
- In the UK study, students using the combined ITS & ELE condition showed significant conceptual learning gains while the ITS-only condition did not — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
multivariate-interaction-combination-effect |
title |
Multivariate ANOVAs showed a significant time-of-measurement by condition interaction on fractions scores in both countries |
description |
Multivariate ANOVAs showed a significant time-of-measurement by condition interaction on fractions scores in both countries |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2022 |
generated |
by process:wiki-ingest on 2026-10-29 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — mavrikis-2022 |
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