Practical help for specifying the target difference in sample size calculations for RCTs: the DELTA2 five-stage study, including a workshop

<br/><strong>Background: </strong>The randomised controlled trial is widely considered to be the gold standard study for comparing the effectiveness of health interventions. Central to its design is a calculation of the number of participants needed (the sample size) for the trial....

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Main Authors: Cook, JA, Julious, SA, Sones, W, Hampson, LV, Hewitt, C, Berlin, JA, Ashby, D, Emsley, R, Fergusson, DA, Walters, SJ, Wilson, ECF, Maclennan, G, Stallard, N, Rothwell, JC, Bland, M, Brown, L, Ramsay, CR, Cook, A, Armstrong, D, Altman, D, Vale, LD
Format: Journal article
Language:English
Published: NIHR Journals Library 2019