Variance terms in multi-armed RCT estimators need slight adjustment under the finite-population framework, which can reduce precision¶
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Evidence · 1 study · theoreticalr?·q2
Currency · newest study 2018 · checked against its sources 2026-10-08 (automated, 1 of 1 entry) · 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.
q2 i? Variance terms need to be adjusted slightly under the finite-population framework in multi-armed trials, and this adjustment can reduce precision. → Peter Z. Schochet 2018
Evidence¶
Peter Z. Schochet 2018¶
Peter Z. Schochet. (2018). Design-Based Estimators for Average Treatment Effects for Multi-Armed RCTs. Journal of Educational and Behavioral Statistics, vol. 43, issue 5. https://www.mathematica.org/publications/design-based-estimators-for-average-treatment-effects-for-multi-armed-rcts
q2 · i? · theoretical · r?
Analytical methodological result derived from the article's key insight about pairwise contrast samples. The article states the variance adjustment "can reduce precision" and links it to a block-weighting requirement in the same sentence.
"The implication is that variance terms need to be adjusted slightly under the finite-population framework that can reduce precision, and blocks need to be weighted to reflect the full randomized sample in the block or biases can result."
Discussion¶
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Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
variance-adjustment-reduces-precision-multi-armed |
title |
Variance terms in multi-armed RCT estimators need slight adjustment under the finite-population framework, which can reduce precision |
description |
Variance terms in multi-armed RCT estimators need slight adjustment under the finite-population framework, which can reduce precision |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2018 |
source_checked |
2026-10-08 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — peter-z-schochet-2018 |
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