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instrument

instrument In this context, an instrument is a variable used in an instrumental variable method to help estimate the causal effect of a health intervention.

In this context, an instrument is a variable used in an instrumental variable method to help estimate the causal effect of a health intervention. It is used to reduce bias from confounding by unmeasured factors, including in studies where the instrument and confounders can change over time.

Sources

Drafting source: Tompsett Daniel; Vansteelandt Stijn; Grieve Richard; Dixon Will; Gomes Manuel. Instrumental variable approaches for estimating time-varying treatment effects in comparative effectiveness research. 2025; DOI 10.1186/s12874-025-02625-y; article XML SHA-256 6e7be6f2828506c749e371d8364455136798b82d4337238882ff3766846eeaab. “Instrumental variable approaches for estimating time-varying treatment effects in comparative effectiveness research” (10.1186/s12874-025-02625-y).
CC-BY-4.0 · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: 6e7be6f2828506c749e371d8364455136798b82d4337238882ff3766846eeaab

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PsychTerms (psychterms.org), CC BY 4.0, version 1. “instrument.” Development preview.

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instrument

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Sources

Cite this entry