How important is the linearity assumption in a sample size calculation for a randomised controlled trial where treatment is anticipated to affect a rate of change?

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作者：
Katy E. Morgan
Ian R. White
Chris Frost
机构：
[1] London School of Hygiene and Tropical Medicine,Department of Medical Statistics
[2] University College London,MRC Clinical Trials Unit at UCL
来源：
BMC Medical Research Methodology | / 23卷
关键词：
Random slopes model; Linearity assumption; Sample size calculation; Randomised clinical trial; Model misspecification;
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