Randomized controlled trials (RCTs) provide the most credible estimates of advertising incrementality but are difficult to scale. We propose Predicted Incrementality by Experimentation (PIE), which re
van den Berg, Gerard J., Bonev, Petyo, and Mammen, Enno, (2020) “Nonparametric Instrumental Variable Methods for Dynamic Treatment Evaluation.” Review of Economics and Statistics 102:2, 355–367.
Placebo tests are increasingly common in applied social science research, but the methodological literature has not previously offered a comprehensive account of what we learn from them. We define pla
Manipulations checks are post-experimental measures widely used to verify that subjects understood the treatment. Some researchers drop subjects who failed manipulation checks in order to limit the an