Items where authors include "Ashby, Deborah"

Article

Cook, JA, Julious, Steven A, Sones, William et al. (18 more authors) (2019) Practical help for specifying the target difference in sample size calculations for RCTs: the DELTA2 five-stage study, including a workshop. Health technology assessment. ISSN 2046-4924

Cook, Jonathan A, Julious, Steven A, Sones, William et al. (18 more authors) (2018) DELTA2 guidance on choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial. Trials. ISSN 1745-6215