Items where authors include "Vale, L.D."

Article

Cook, J.A., Julious, S.A., Sones, W. 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, 23 (60). pp. 1-88. ISSN 1366-5278

Cook, .JA. orcid.org/0000-0002-4156-6989, Julious, S.A., Sones, W. 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, 19. 606. ISSN 1745-6215

Cook, J.A., Julious, S.A., Sones, W. 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. BMJ. 363. ISSN 0959-8146

Sones, W., Julious, S.A., Rothwell, J.C. et al. (11 more authors) (2018) Choosing the target difference and undertaking and reporting the sample size calculation for a randomised controlled trial - the development of the DELTA2 guidance. Trials, 19. 542. ISSN 1745-6215

Cook, J.A., Julious, S.A., Sones, W. et al. (11 more authors) (2017) Choosing the target difference ('effect size') for a randomised controlled trial - DELTA(2) guidance protocol. Trials, 18. 271.