Why tests are not perfect
Kaiser explains why testing can't be perfect. Typically, the test itself can't be perfect; but also errors arise from outside the labs.
Politics
Check out the Lifespan of News project
Kaiser Fung (Junkcharts, Principal Analytics Prep) reviews the Lifespan of News project that tracks the rise and fall of news stories over time and space, using Google search data.
Let's not mix these polarized voters as the medians run away from one another
In-depth look at Washington Post's fantastic feature on median U.S. voters
Your charts need the gift of purpose
A case of doubly inverted scales
Butcher: which part of the leg do you want? Me: All of it, in five pieces please
This ABC News chart seemed to have taken over the top of
Dot plots are under-valued, that's all
Bar charts are over-used and over-rated. Just casually, I found this example