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Statistics in Medicine|September 27, 2017
Efficient treatment allocation in 2 × 2 multicenter trials when costs and variances are heterogeneousFrancesca Lemme, Gerard J P van Breukelen, Math J J M CandelStatistics in Medicine|November 10, 2006
Relative efficiency of unequal versus equal cluster sizes in cluster randomized and multicentre trialsGerard J P van Breukelen, Math J J M Candel, Martijn P F BergerStatistics in Medicine|December 22, 2018
Relative efficiencies of two-stage sampling schemes for mean estimation in multilevel populations when cluster size is informativeFrancesco Innocenti, Math J J M Candel, Frans E S Tan, et al.Statistical Methods in Medical Research|April 26, 2015
The effect of heterogeneous variance on efficiency and power of cluster randomized trials with a balanced 2 × 2 factorial designFrancesca Lemme, Gerard J P van Breukelen, Math J J M Candel, et al.Psychological Methods|August 12, 2021
Sample size calculation and optimal design for regression-based norming of tests and questionnairesFrancesco Innocenti, Frans E S Tan, Math J J M Candel, et al.Advances in Life Course Research|February 2, 2023
An overview of mixture modelling for latent evolutions in longitudinal data: Modelling approaches, fit statistics and softwareGavin van der Nest, Valéria Lima Passos, Math J J M Candel, et al.Journal of Clinical Epidemiology|August 10, 2006
ANCOVA versus change from baseline: more power in randomized studies, more bias in nonrandomized studies [corrected]Gerard J P Van BreukelenStatistics in Medicine|April 16, 2026
Correcting for a Baseline Difference in Group Comparisons on a Binary Outcome: Covariate Adjustment or Analysis of Change?Gerard J P Van BreukelenMultivariate Behavioral Research|August 17, 2023
Cluster Randomized Trials with a Pretest and Posttest: Equivalence of Three-, Two- and One-Level Analyses, and Sample Size CalculationGerard J P Van BreukelenMultivariate Behavioral Research|January 9, 2016
ANCOVA Versus CHANGE From Baseline in Nonrandomized Studies: The DifferenceGerard J P van BreukelenPageof 12