Sample Size for Testing Differences in Proportions for the Paired-Sample Design

  • Connor R
  • 56


    Mendeley users who have this article in their library.
  • 77


    Citations of this article.


Miettinen (1968, Biometrics 24, 339-352) presented an approximation for power and sample size for testing the differences between proportions in the matched-pair case. Duffy (1984, Biometrics 40, 1005-1015) gave the exact power for this case and showed that Miettinen's approximation tends to slightly overestimate the power or underestimate the sample size necessary for the design power. A simple alternative approximation that is more conservative is presented here. In many cases, the sample size for the independent-sample case provides a conservative approximation for the matched-pair design.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Robert Connor

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free