<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=648880075207035&amp;ev=PageView&amp;noscript=1">


Simpson's Paradox

Simpsons Paradox

Simpson's Paradox rears its ugly head in many research studies and can potentially lead to catastrophic biases in the estimation of effects, such that the naively-perceived effect is the opposite of the true effect. 

This example illustrates this type of sign reversal, plus it adds another twist: Depending on what variables we condition on, we observe a double reversal of the sign of the effect.

For a full explanation, please see Example 4 in our seminar on Artificial Intelligence for Research, Analytics, and Reasoning.

Example Files