Quote:
Originally Posted by Jay Random
Based on what data? Have they been doing a controlled experiment where they hired their own scorekeepers and gathered their own data by uniform standards in every arena, to compare with the data actually used by the league? That would be valid but difficult.
Or have they merely done calisthenics with numbers and come to the conclusion that the 'rink effect' is too small to measure due to signal noise? But the claim being made is that the rink effect is a significant contributor to the noisiness of the signal. That would require a different methodology to measure.
Now, if they are indeed using a different methodology, I would genuinely like to hear about it. But it puzzles me what they would be using for data.
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The analysis I read was a analyst looked at the average shots to goals ratio of every stadium compared to each rink specifically, they should all roughly equalize to a league-wide average ratio. If a rink had higher shots to goal ratio than the average you know that they were over counting shots.
http://www.hockeyprospectus.com/rink...g-shot-counts/
The finding was that yes while some arenas over or under count shots, it was an additional 0.5 shots for every 100 shots taken by the home team. In other words insignificant.