Increasing power : adding controls and stratification.

Billy Jack explains two methods to increase the statistical power of a randomized controlled trial (RCT) with a fixed sample size: controlling for relevant variables and stratifying the sample by baseline characteristics.

Bibliographic Details

Other Authors:	Jack, Billy (academic.)
Format:	Video
Language:	English
Language Notes:	Closed-captioned in English.
Published:	[Washington, D.C.] : Georgetown University, 2020.
Series:	Power Calculations ; 6.
Subjects:	Random variables. Variables aléatoires.
Online Access:	Connect to this streaming video