ivcheck: Tests for Instrumental Variable Validity

Implements tests for the identifying assumptions of instrumental variable models, the local exclusion restriction and monotonicity conditions required for local average treatment effect identification. Covers Kitagawa (2015) <doi:10.3982/ECTA11974>, Mourifie and Wan (2017) <doi:10.1162/REST_a_00622>, and Frandsen, Lefgren, and Leslie (2023) <doi:10.1257/aer.20201860>. Includes a one-shot wrapper that runs all applicable tests on a fitted instrumental variable model. Dispatches on 'fixest' and 'ivreg' model objects.

Version:	0.1.1
Depends:	R (≥ 4.1.0)
Imports:	cli (≥ 3.6.0), stats, parallel
Suggests:	testthat (≥ 3.0.0), fixest, ivreg, modelsummary, broom, spelling, knitr, rmarkdown
Published:	2026-04-22
DOI:	10.32614/CRAN.package.ivcheck
Author:	Charles Coverdale [aut, cre]
Maintainer:	Charles Coverdale <charlesfcoverdale at gmail.com>
BugReports:	https://github.com/charlescoverdale/ivcheck/issues
License:	MIT + file LICENSE
URL:	https://github.com/charlescoverdale/ivcheck
NeedsCompilation:	no
Language:	en-US
Citation:	ivcheck citation info
Materials:	README, NEWS
CRAN checks:	ivcheck results

Documentation:

Reference manual:	ivcheck.html , ivcheck.pdf
Vignettes:	Getting started with ivcheck (source, R code) Judge-fixed-effects designs (source, R code) Using ivcheck with fixest (source, R code)

Downloads:

Package source:	ivcheck_0.1.1.tar.gz
Windows binaries:	r-release: ivcheck_0.1.1.zip, r-oldrel: ivcheck_0.1.1.zip
macOS binaries:	r-release (arm64): ivcheck_0.1.1.tgz, r-oldrel (arm64): ivcheck_0.1.1.tgz, r-release (x86_64): ivcheck_0.1.1.tgz, r-oldrel (x86_64): ivcheck_0.1.1.tgz

Linking:

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