Category: 2005-2009

Journal Article: Response to Bi, J. (2007)

Abstract: Bi (2007) discusses equivalency testing (which he terms similarity testing) in a recent paper in Food Quality and Preference and he relies on theory underlying the ‘‘two one-sided tests’’ (TOST) referencing Westlake (1981) and Schuirmann (1981). Bi’s paper contains…

Journal Article: Tables for parity testing (2008)

Abstract: There is frequent interest in establishing whether two products or treatments are essentially equivalent or at parity. Two types of parity hypotheses are defined in this article, an unsurpassed hypothesis and an equality hypothesis. Tables for these two types…