Good as Gold

When turning on their TVs to watch the 2006 Olympic Games in Turino, Italy this month, people all over the world will witness the same events. They will be thrilled […]... More>

Letter/Observer Forum

Correlation Still Isn’t Causation

In his letter to the editor [Observer, December 2005], Justin M. Joffe took issue with my assertion in a “Teaching Tips” column [Observer, September 2005] that “distinguishing correlation from causation” […]... More>