Results 31 to 40 of about 345,517 (350)

More Powerful Cluster Randomized Control Trials

Economic Development and Cultural Change, 2022
Balanced experimental designs, in which the number of treatment and control units are the same, do not maximize power subject to a cost constraint when treat-ment units are more expensive than control ones. Despite this, such balanced designs are the norm in economics. This paper describes methods to optimally choose the number of treatment and control
Marcos Vera-Hernandez, Brendon McConnell
openaire   +3 more sources

Alcohol Screening and Brief Interventions for Offenders in the Probation Setting (SIPS Trial): a Pragmatic Multicentre Cluster Randomized Controlled Trial [PDF]

, 2014
Aim - To evaluate the effectiveness of different brief intervention strategies at reducing hazardous or harmful drinking in the probation setting. Offender managers were randomized to three interventions, each of which built on the previous one: feedback
Bland, Martin, Cassidy, Paul, Coulton, Simon, Dale, Veronica, Deluca, Paolo, Drummond, Colin, Gilvarry, Eilish, Godfrey, Christine, Heather, Nick, Kaner, Eileen, McGovern, Ruth, Myles, Judy, Newbury-Birch, Dorothy, Oyefeso, Adenekan, Parrott, Steve, Patton, Robert, Perryman, Katherine, Phillips, Tom, Shepherd, Jonathan   +18 more
core   +1 more source

Transfer of manualized CBT for social phobia into clinical practice (SOPHO-PRAX) : a study protocol for a cluster-randomized controlled trial [PDF]

, 2012
Background: Cognitive-behavioral therapy (CBT) is generally known to be efficacious in the treatment of social phobia when applied in RCT's, namely when the treatment manual is based on the Clark-Wells approach.
Crawcour, Stephen, Ginzburg, Denise, Hoyer, Jürgen, Leibing, Eric, Stangier, Ulrich, Wiltink, Jörg   +5 more
core   +1 more source

Setting priorities to inform assessment of care homes’ readiness to participate in healthcare innovation: a systematic mapping review and consensus process [PDF]

, 2020
© 2020 The Author(s). This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly citedOrganisational ...
Bunn, F., Corazzini, K., Dening, T., Goodman, C., Gordon, A. L., Handley, M., Lynch, J, Meyer, J., Sharpe, R.   +8 more
core   +4 more sources

Cluster Randomized Trials

, 2019
Author(s): Crespi-Chun, Catherine; Crespi, Catherine | Editor(s): Halabi, Susan; Michiels, Stefan | Abstract: This chapter discusses randomization, analysis, sample size and power for cluster randomized trials. Both continuous and binary outcomes are covered. R code to implement the methods is provided.
Crespi-Chun, Catherine, Crespi, Catherine   +1 more
openaire   +3 more sources

Cluster randomised trials in the medical literature: two bibliometric surveys [PDF]

, 2004
Background: Several reviews of published cluster randomised trials have reported that about half did not take clustering into account in the analysis, which was thus incorrect and potentially misleading.
A Donner, A Donner, A Donner, C Emslie, CM Wright, CR Elley, D Nutbeam, DG Altman, DG Altman, DM Murray, E Rink, G Meyer, J Cornfield, J Martin Bland, JCFM Wetsteyn, JM Bland, JM Bland, JM Simpson, MAH Russell, MJ Gardner, MJ Gardner, MK Campbell, P Isaakidis, S Puffer, SM Eldridge, SM Kerry, SM Kerry, SM Kerry, SP Varnell   +28 more
core   +4 more sources

Does education level affect the efficacy of a community based salt reduction program? - A post-hoc analysis of the China Rural Health Initiative Sodium Reduction Study (CRHI-SRS)

BMC Public Health, 2016
Background Whether educational level influences the effects of health education is not clearly defined. This study examined whether the impact of a community-based dietary salt reduction program was affected by the level of education of participants ...
Xin Wang, Xian Li, Ilonca Vaartjes, Bruce Neal, Michiel L. Bots, Arno W. Hoes, Yangfeng Wu   +6 more
doaj   +1 more source

Cluster identification, selection, and description in cluster randomized crossover trials: the PREP-IT trials

Trials, 2020
Background In cluster randomized crossover (CRXO) trials, groups of participants (i.e., clusters) are randomly allocated to receive a sequence of interventions over time (i.e., cluster periods).
Sheila Sprague, Taryn Scott, Shannon Dodds, David Pogorzelski, Paula McKay, Anthony D. Harris, Amber Wood, Lehana Thabane, Mohit Bhandari, Samir Mehta, Greg Gaski, Christina Boulton, Francesc Marcano-Fernández, Ernesto Guerra-Farfán, Joan Hebden, Lyndsay M. O’Hara, Gerard P. Slobogean, on behalf of the PREP-IT Investigators   +17 more
doaj   +1 more source

A secondary analysis of the #Tamojunto cluster-randomized trial [PDF]

, 2019
Aims: To investigate the mediating effects of normative beliefs of drug use on the effects of the #Tamojunto school-based prevention program (Unplugged). Design: Secondary analysis of a cluster randomized controlled trial.
Cogo-Moreira, Hugo, Fidalgo, Thiago M., Leal, Ana Paula, Pimentel de Medeiros, Pollyanna Fausta de, Sanchez, Zila M., Valente, Juliana Y.   +5 more
core   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source