Search results: Sage Journals

Restricted accessResearch articleFirst published October, 2021

Testing for treatment effect in covariate-adaptive randomized trials with generalized linear models and omitted covariates

Yang Li, Wei Ma, Yichen Qin [...]

Statistical Methods in Medical Research

Restricted accessResearch articleFirst published October, 2017

Investigating Approaches to Estimating Covariate Effects in Growth Mixture Modeling: A Simulation Study

Ming Li, Jeffrey R. Harring

Educational and Psychological Measurement

Restricted accessResearch articleFirst published August, 2006

Comparing Fixed Effects and Covariance Structure Estimators for Panel Data

Mette Ejrnæs, Anders Holm

Sociological Methods & Research

Restricted accessResearch articleFirst published August, 2021

Covariance Regression Models for Studying Treatment Effect Heterogeneity Across One or More Outcomes: Understanding How Treatments Shape Inequality

Deirdre Bloome, Daniel Schrage

Sociological Methods & Research

Restricted accessResearch articleFirst published May, 2021

Fitting Nonlinear Mixed-effects Models With Alternative Residual Covariance Structures

Shelley A. Blozis, Jeffrey R. Harring

Sociological Methods & Research

Restricted accessResearch articleFirst published August, 2011

Random covariances and mixed-effects models for imputing multivariate multilevel continuous data

Recai M Yucel

Statistical Modelling

Restricted accessResearch articleFirst published February, 2017

Treatment selection in a randomized clinical trial via covariate-specific treatment effect curves

Yunbei Ma, Xiao-Hua Zhou

Statistical Methods in Medical Research

Restricted accessResearch articleFirst published October, 2025

Decomposing Impact on Longitudinal Outcome of Time-Varying Covariate into Baseline Effect and Temporal Effect

Jin Liu

Journal of Educational and Behavioral Statistics

Restricted accessResearch articleFirst published December, 2019

A quick and accurate method for the estimation of covariate effects based on empirical Bayes estimates in mixed-effects modeling: Correction of bias due to shrinkage

Min Yuan, Xu Steven Xu, Yaning Yang [...]

Statistical Methods in Medical Research

Restricted accessResearch articleFirst published May, 1999

Covariation-Based Attribution: On the Ability to Assess Multiple Covariates of an Effect

Klaus Fiedler, Eva Walther, Stefanie Nickel

Personality and Social Psychology Bulletin

Restricted accessResearch articleFirst published October, 2021

Testing for treatment effect in covariate-adaptive randomized trials with generalized linear models and omitted covariates

Yang Li, Wei Ma, Yichen Qin [...]

Statistical Methods in Medical Research

Restricted accessResearch articleFirst published October, 2017

Investigating Approaches to Estimating Covariate Effects in Growth Mixture Modeling: A Simulation Study

Ming Li, Jeffrey R. Harring

Educational and Psychological Measurement

Restricted accessResearch articleFirst published August, 2006

Comparing Fixed Effects and Covariance Structure Estimators for Panel Data

Mette Ejrnæs, Anders Holm

Sociological Methods & Research

Restricted accessResearch articleFirst published August, 2021

Covariance Regression Models for Studying Treatment Effect Heterogeneity Across One or More Outcomes: Understanding How Treatments Shape Inequality

Deirdre Bloome, Daniel Schrage

Sociological Methods & Research

Restricted accessResearch articleFirst published May, 2021

Fitting Nonlinear Mixed-effects Models With Alternative Residual Covariance Structures

Shelley A. Blozis, Jeffrey R. Harring

Sociological Methods & Research

Restricted accessResearch articleFirst published August, 2011

Random covariances and mixed-effects models for imputing multivariate multilevel continuous data

Recai M Yucel

Statistical Modelling

Restricted accessResearch articleFirst published February, 2017

Treatment selection in a randomized clinical trial via covariate-specific treatment effect curves

Yunbei Ma, Xiao-Hua Zhou

Statistical Methods in Medical Research

Restricted accessResearch articleFirst published October, 2025

Decomposing Impact on Longitudinal Outcome of Time-Varying Covariate into Baseline Effect and Temporal Effect

Jin Liu

Journal of Educational and Behavioral Statistics

Restricted accessResearch articleFirst published December, 2019

A quick and accurate method for the estimation of covariate effects based on empirical Bayes estimates in mixed-effects modeling: Correction of bias due to shrinkage

Min Yuan, Xu Steven Xu, Yaning Yang [...]

Statistical Methods in Medical Research

Restricted accessResearch articleFirst published May, 1999

Covariation-Based Attribution: On the Ability to Assess Multiple Covariates of an Effect

Klaus Fiedler, Eva Walther, Stefanie Nickel

Personality and Social Psychology Bulletin