1. Preference option randomized design (PORD) for comparative effectiveness research: Statistical power for testing comparative effect, preference effect, selection effect, intent-to-treat effect, and overall effect. (February 2019) Authors: Heo, Moonseong; Meissner, Paul; Litwin, Alain H; Arnsten, Julia H; McKee, M Diane; Karasz, Alison; McKinley, Paula; Rehm, Colin D; Chambers, Earle C; Yeh, Ming-Chin; Wylie-Rosett, Judith Journal: Statistical methods in medical research Issue: Volume 28:Number 2(2019) Page Start: 626 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗