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Volume 10, Number 3 (September, 2002), Pages 233-239

doi:10.2498/cit.2002.03.12

Equivalence Testing the Easy Way

Vesna Lužar-Stiffler
University Computing Centre and CAIR Research Center, Zagreb, Croatia (Hrvatska)
Charles Stiffler
CAIR Research Center, Zagreb, Croatia (Hrvatska)

Abstract
The purpose of the article is to demonstrate an equivalence testing software application written under SAS^1 Institute software designed for use by pharmaceutical and other medical research professionals. Besides making the entire equivalence testing procedure easier and more efficient, the application “EquivEasy” offers three main advantages over similar software: a) testing for 3 x 3 in addition to 2 x 2 crossover designs, b) familiar SAS user environment, and c) export flexibility (MS Word, PDF, HTML). Two case studies are presented with report results provided in tabular and graphical form.

Keywords
equivalence testing, SAS application, crossover design, TOST, nonparametric tests, clinical trials

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