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Rick Wicklin

A problem with an "index" is that it's hard to figure out the scale of comparison. How high can the scale go? Does an "average city" has index=50? Is it pegged to "average pain" in 2000, or does the scale change from year to year?

Furthermore, if all you're doing is comparing cities, why introduce a scale at all? Why not just rank the cities according to your scale and publish the rankings, similar to the US News and World Report ranking of colleges and universities?


These are eyelashes!

Angelina Downs

The accessories are really tricky. I remembered my teacher who used this kind of diagram in her discussions, many of us, her students, were confused because of the style. She should have used simpler one, also this blog.

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