Open AccessSample size estimation in educational intervention trials with subgroup heterogeneity in only one arm
Author(s) -
Denise Esserman,
YiFang Zhao,
Yiyun Tang,
Jianwen Cai
Publication year - 2013
Publication title -
carolina digital repository (university of north carolina at chapel hill)
Language(s) - English
DOI - 10.17615/jb3j-d565
Subject(s) - estimation , sample size determination , subgroup analysis , statistics , intervention (counseling) , medicine , econometrics , psychology , mathematics , economics , nursing , confidence interval , management