The two targeted ablations produce small, partially counter-directional effects: removing the construct map does not materially change the composite score (p = 0.34 on equivalence)¶
Claim · All claims
Evidence · 1 study · causalr1·q2
Currency · newest study 2026 · 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? Removing the construct map from chain-of-thought raises the joint score from 0.876 to 0.877 while construct equivalence drops from 0.960 to 0.950, a shift that does not approach significance (p = 0.34); the few-shot wording contrast moves equivalence by two points with an essentially unchanged joint score. → Ernesto Lee 2026
Evidence¶
Ernesto Lee 2026¶
Ernesto Lee. (2026). VARIA: Benchmarking Frontier LLMs on Construct-Equivalent Assessment Variant Generation. https://doi.org/10.35542/osf.io/u6xef_v2
q2 · i? · causal · r1
Descriptive contrasts from the single experimental trial, reported in the Results ablation subsection and confirmed as nulls by exact paired tests (construct-map equivalence shift p = 0.34; few-shot wording contrast p = 0.375 on equivalence, p = 0.87 on joint score).
"Removing the construct map from chain-of-thought raises the joint score by a sliver ( 0.876 → 0.877 ) — the construct map step does not, in our pilot, materially improve the composite, and a modest drop in construct equivalence ( 0.960 → 0.950 ) is offset by tighter readability dispersion."
Discussion¶
Related Claims¶
- Few-shot anchoring trades surface diversity against construct equivalence and readability parity, with each direction significant at p = 0.004 relative to zero-shot — related
- Frontier LLM prompting strategies cluster at joint integrity scores of 0.81-0.88 while non-frontier references collapse to 0.50-0.55, a 25-31 point capability-tier gap — related
- Model performance is robust to minor prompt wording changes but sensitive to holistic rubric redesign — a broader claim this one bears on
- Chain-of-Thought prompting improves KC planning for Qwen models but its effect varies by model and educational stage — related
- Curricular chain-of-thought prompting improves competency-classification accuracy over zero-shot, with gains concentrated in larger models, while definition-based prompting does not improve performance — related
- Chain-of-thought and reasoning prompting significantly improve LLM proportional match with human-authored distractors over direct prompting on both math and science MCQs — related
- Individual model-strategy cells span J = 0.704 to 0.900, a model-by-prompt interaction wider than the tight strategy-level frontier band — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
varia-ablation-null-effects |
title |
The two targeted ablations produce small, partially counter-directional effects: removing the construct map does not materially change the composite score (p = 0.34 on equivalence) |
description |
The two targeted ablations produce small, partially counter-directional effects: removing the construct map does not materially change the composite score (p = 0.34 on equivalence) |
status |
review |
evidence_strength |
weak |
newest_evidence |
2026 |
generated |
by process:wiki-ingest on 2026-10-12 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — ernesto-lee-2026 |
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