Analytics-business interaction Better late than never Kaiser learns about someone who never checks his data for problems
Models Primer on Regression Adjustments 1 Kaiser starts a series of posts about regression adjustments.
vaccine effectiveness Cutting infection rate by half is not the same as protecting half the people from infection Kaiser explains what 50% vaccine efficacy actually means, and it's not what you think.
Excel Dr. Backlog jumps the pond Kaiser investigates the official reason for U.K. under-reporting of coronavirus cases.
standardized testing A testing mess across the pond Kaiser takes a glance at the A-Levels controversy in the U.K.