Attrition of 130 students (35%) between pretest and posttest was not systematically related to baseline characteristics¶
Claim · All claims
Evidence · 1 study · causalr2·q3
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
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This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? Dropout between T1 and T2 showed no statistically significant differences on baseline characteristics, suggesting attrition was not systematic. → Tim Fütterer 2026
Evidence¶
Tim Fütterer 2026¶
Tim Fütterer, Lisa Bardach, Jochen Kuhn, Stefan Daniel Keller, Peter Gerjets. (2026). Enhancing School Students’ Self-Regulated Learning through Generative AI Support: A Randomized Controlled Trial. Educational Psychology Review. https://doi.org/10.1007/s10648-026-10133-8
q3 · i? · causal · r2
Regression analysis comparing the 130 students (35%) who dropped out between T1 and T2 with those who remained, on gender, conscientiousness, openness, dispositional interest, ability self-concept, and growth mindset. "no statistically significant differences between dropouts and non-dropouts on any of these variables".
"The analysis revealed no statistically significant differences between dropouts and non-dropouts on any of these variables, suggesting that attrition was not systematically related to students’ initial characteristics."
Discussion¶
Related Claims¶
- Longitudinal subject attrition produces systematic baseline differences among continuing, dropout, and non-participating students — reports the opposite
- Students who did not retest in fall 2020 were disproportionately minoritized and lower-achieving compared with students who retested — reports the opposite
- In the qualifying quasi-experimental study, at-risk Kindergarten students using Waterford Level One for 15-minute daily sessions were matched to comparison students and pretested in fall and posttested in spring — related
- Participants who dropped out of the four-wave study reported more peer victimization at the first time point than those who participated at all time points — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
rct-attrition-35-percent-not-systematic |
title |
Attrition of 130 students (35%) between pretest and posttest was not systematically related to baseline characteristics |
description |
Attrition of 130 students (35%) between pretest and posttest was not systematically related to baseline characteristics |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2026 |
generated |
by process:wiki-ingest on 2026-10-22 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — tim-fütterer-2026 |
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