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POWER_TWOROC: Stata module to compute power and sample size for a two-sample (independent or paired) ROC test

Author

Listed:
  • Ariel Linden

    (Linden Consulting Group, LLC)

Programming Language

Stata

Abstract

power tworoc computes sample size or power for a two-sample receiver operating characteristic (ROC) analysis. When there is no correlation corr(0) between the two alternative AUCs (auc1 and auc2), power tworoc computes sample size (power) for an independent two-sample test. When the correlation does not equal 0, power tworoc computes sample size (power) for a paired two-sample test. Variance functions are computed using either the method described in Obuchowski, Lieber and Wians (2004) for ordinal data assuming a binormal distribution, or the method described by Hanley and McNeil (1982) for continuous data which is based on the Mann-Whitney version of the rank-sum test (the default).

Suggested Citation

  • Ariel Linden, 2022. "POWER_TWOROC: Stata module to compute power and sample size for a two-sample (independent or paired) ROC test," Statistical Software Components S459129, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s459129
    Note: This module should be installed from within Stata by typing "ssc install power_tworoc". 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/p/power_cmd_tworoc.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/p/power_cmd_tworoc_init.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/p/power_tworoc.sthlp
    File Function: help file
    Download Restriction: no
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