Choosing the target difference (‘effect size’) for a randomised controlled trial - DELTA2 guidance protocol

by Jonathan A. Cook, Steven A. Julious, William Sones, Joanne C. Rothwell, Craig R. Ramsay, Lisa V. Hampson, Richard Emsley, Stephen J. Walters, Catherine Hewitt, Martin Bland, Dean A. Fergusson, Jesse A. Berlin, Doug Altman, Luke D. Vale
Published 2017-06-01

DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial

by Jonathan A. Cook, Steven A. Julious, William Sones, Lisa V. Hampson, Catherine Hewitt, Jesse A. Berlin, Deborah Ashby, Richard Emsley, Dean A. Fergusson, Stephen J. Walters, Edward C. F. Wilson, Graeme Maclennan, Nigel Stallard, Joanne C. Rothwell, Martin Bland, Louise Brown, Craig R. Ramsay, Andrew Cook, David Armstrong, Doug Altman, Luke D. Vale
Published 2018-11-01

Evaluation of a manualised speech and language therapy programme for children with social communication disorder: the SCIP feasibility study

by Catherine Adams, Jacqueline Gaile, Hazel Roddam, Janet Baxendale, Laura Clitheroe, Richard Emsley
Published 2020-09-01

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

by Jonathan A Cook, Steven A Julious, William Sones, Lisa V Hampson, Catherine Hewitt, Jesse A Berlin, Deborah Ashby, Richard Emsley, Dean A Fergusson, Stephen J Walters, Edward CF Wilson, Graeme MacLennan, Nigel Stallard, Joanne C Rothwell, Martin Bland, Louise Brown, Craig R Ramsay, Andrew Cook, David Armstrong, Douglas Altman, Luke D Vale
Published 2019-10-01