2002
‘Intention-to-treat’ meets ‘missing data’: implications of alternate strategies for analyzing clinical trials data
Nich C, Carroll KM. ‘Intention-to-treat’ meets ‘missing data’: implications of alternate strategies for analyzing clinical trials data. Drug And Alcohol Dependence 2002, 68: 121-130. PMID: 12234641, PMCID: PMC3651592, DOI: 10.1016/s0376-8716(02)00111-4.Peer-Reviewed Original ResearchConceptsEffectiveness of treatmentTreat analysisClinical trialsRandomized clinical trialsClinical trial dataStudy treatmentProtocol violationsTreat strategyTreatment retentionPoint of dropoutTime-varying covariatesTrial dataCocaine dependenceIntended durationParticipant dropoutRelative efficacyTrialsTreatmentMultiple analytic strategiesRetention outcomesDurationFull durationStrategy 1Analytic strategiesSubstantial levels
1997
Now You See It, Now You Don't: A Comparison of Traditional Versus Random-Effects Regression Models in the Analysis of Longitudinal Follow-Up Data From a Clinical Trial
Nich C, Carroll K. Now You See It, Now You Don't: A Comparison of Traditional Versus Random-Effects Regression Models in the Analysis of Longitudinal Follow-Up Data From a Clinical Trial. Journal Of Consulting And Clinical Psychology 1997, 65: 252-261. PMID: 9086688, DOI: 10.1037/0022-006x.65.2.252.Peer-Reviewed Original ResearchConceptsAdvantage of modelsRandom effects regression modelsTraditional ANOVAVariance modelRegression modelsMultiple analytic strategies