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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.
Heo M, Meissner P, Litwin AH, Arnsten JH, McKee MD, Karasz A, McKinley P, Rehm CD, Chambers EC, Yeh MC, Wylie-Rosett J. Heo M, et al. Stat Methods Med Res. 2019 Feb;28(2):626-640. doi: 10.1177/0962280217734584. Epub 2017 Nov 9. Stat Methods Med Res. 2019. PMID: 29121828 Free PMC article.
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