Title: Equivalence Tests
Author: Keith M. Bower
Publication Source: KeithBower.com

Notes

Description of TOST (Two One-Sided t-Tests) as a method of assessing equivalency, and a discussion of why the independent two-sample t-test method is inappropriate. The best write-up on this topic I've found is "Beyond the t-test" though is only freely available if you have subscribed to American Chemical Magazine. If you're serious about wanting to perform TOST studies, I recommend that you obtain a copy as it also deals with the thorny issue of sample size and "goalpost" determination. The US Food and Drug Administration also have a nice presentation on TOST via this link.

If you find useful resources on this topic, please email them to me (blog@keithbower.com) and I'll add the link from this page.

Download this video (free) through this link (iTunes opens):

Click the play button on the video player screen below. For Closed Captioning, start the video then choose the upward pointing triangle at the bottom right hand corner of the player, and select "CC".

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