4 papers
CUPED on Steroids: Multivariate Covariate Adjustment for Switchback Experiments
Sergei Pankratev, Palash Arora
Controlled-experiment Using Pre-Experiment Data (CUPED) reduces the variance of the treatment effect estimator in online experiments by adjusting the in-experiment outcome metric u…
Power-Optimal Covariate Adjustment for Switchback Experiments
Sergei Pankratev
In switchback experiments with unequal cluster sizes, outcome dispersion across randomization units inflates estimator variance and limits statistical power. Standard control-using…
Powerful Switchback Experiments -- Or Not?
Sergei Pankratev
Switchback experiments -- in which treatment is assigned at the level of a cluster crossed with a time period -- are widely used in marketplace and platform settings, yet no closed…
Design-Aware Variance Reduction for Switchback Experiments: A Comparative Study
Sergei Pankratev
Switchback experiments and other clustered randomized designs are widely used on online platforms, but the clustered, time-dependent nature of these designs can make standard varia…