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Activity Number:
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343
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Type:
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Contributed
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Date/Time:
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Tuesday, July 31, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Statistics in Sports
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| Abstract - #310407 |
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Title:
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Measuring Player Contribution in the NBA
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Author(s):
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David Lewin*+ and Vittorio Addona
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Companies:
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Macalester College and Macalester College
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Address:
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1600 Grand Avenue, Saint Paul, MN, 55105,
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Keywords:
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NBA ; Sports ; Basketball
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Abstract:
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For an NBA player, a plus-minus rating can be calculated as the difference between the points scored by his team minus the points scored by the opposing team when he is on the court. This is a crude measure of performance since it does not account for the players who share the court with the player in question. We evaluate player performance in the NBA by treating every period between substitutions as a game, and regressing the outcomes of these games on the players who were on the court for that period. Each player is thus a variable in our model, with the intercept representing home court advantage. The data for this work is from the 2005--2006 season, which included roughly 36000 periods. The coefficients obtained from the regression are "adjusted" plus-minus ratings.
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