Plug in a few numbers. Press the Calculate button. And just like that, a number
pops out, displaying your quarterback’s performance. 31.4? He had a bad day. 128.7? He
put up a show. Amazing isn’t it?
I would like to say that the NFL Quarterback Rating Formula precisely measures
quarterback performance, but it doesn’t. The problem is twofold. First, anything relevant
to an evaluation must be included for perfect measurements. Presently the formula
includes attempts, completions, passing yards, passing touchdowns, and interceptions as
metrics for determining a quarterback’s rating. But the formula also lacks sacks,
composure, and fumbles, among many other predictors, that are crucial in order to
determine quarterback performance.
What’s more, these elements need to be precisely quantified. However, this is
inherently impossible because that asks for quantification of qualitative aspects such as
composure. These two problems, including predictors and quantifying predictors, form
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 Spring '10
 sdf
 princeton, quarterback rating, quarterback rating formula, NFL Quarterback Rating

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