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CLTEST: Stata modules for performing cluster-adjusted chi-square and t-tests

Author

Listed:
  • Jeph Herrin

Programming Language

Stata

Abstract

cltest is a pair of programs for analyzing data that have been randomized in clusters. clttest compares the means of two sets of grouped outcomes, with optional support for group-stratified outcomes. clchi2 estimates an adjusted chi-square test of independence for 2xk groups, with optional support for group-stratified outcomes. Adjustments for clustering are taken from Donner & Klar (Cluster Randomization Trials in Health Services Research, 2000), with the CLCHI2 program generalized to the 2xk case. chchi2 uses loneway to calculate the inter-cluster correlation, which in Stata 6.0 and higher includes a correction for imbalanced groups.

Suggested Citation

  • Jeph Herrin, 2002. "CLTEST: Stata modules for performing cluster-adjusted chi-square and t-tests," Statistical Software Components S424901, Boston College Department of Economics, revised 10 Jun 2022.
    • Handle: RePEc:boc:bocode:s424901
    Note: This module may be installed from within Stata 7 by typing "ssc install cltest". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/c/clttest.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/c/clttest.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/c/clchi2.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/c/clchi2.sthlp
    File Function: help file
    Download Restriction: no
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