Centre for Statistical Methodology Seminar
Causal Inference Theme
Thursday 23 May 2013, 5:00-6:00pm
Manson Lecture Theatre, Keppel Street
Varieties of sensitivity analysis for direct and indirect effects
Prof Tyler VanderWeele (Harvard School of Public Health)
Abstract: Methods for direct and indirect effects have been popular within the social sciences for decades and have recently been receiving increasing attention within epidemiology and biostatistics. To interpret estimates of direct and indirect effects causally several strong identification assumptions are required. In most application settings these will not hold. Sensitivity analysis techniques can be useful in assessing the extent to which violations in the assumptions would change substantive conclusions. Several sensitivity analysis techniques will be presented and illustrated including sensitivity analysis for unmeasured mediator-outcome confounding, for time-dependent confounding, and for measurement error of the mediator. Several applications will be presented in which such sensitivity analysis reasoning sheds considerable light on the applications in question. Examples will be presented from perinatal epidemiology, psychiatric epidemiology and genetic epidemiology.
Centre for Statistical Methodology
Missing Data Theme
Wednesday 19 June 2013
Room LG6 & LG7 (Rose Room), Keppel Street
Missing data afternoon
James Carpenter and Mike Kenward (LSHTM)
An afternoon of talks on missing data, including the launch of the following book, authored by two members of the Centre for Statistical Methodology:
Carpenter JR and Kenward MG. Multiple Imputation and its Application. Chichester: Wiley; 2013.
Centre for Statistical Methodology
Missing Data Theme
Friday 28 June 2013
Room LG7, Keppel Street
Improving upon complete case analysis when covariates are missing not at random
Jonathan Bartlett (LSHTM)
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