In this month’s session, Piotr Urbanski, Ph.D., Ayzenberg associate director of marketing science, explains how to test conditional hypotheses—hypotheses that depend on the value of other variables— and the differences between probabilistic, directional and conditional hypotheses. The course aims to help analysts who are trying to put statistical confidence on the phrase, “It depends on…” and anyone hoping to ask better questions and understand the results of conditional analyses.