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In order to measure how strictly correctly a player or team is shooting we need statistics
, and if possible a creative
analysis of those Basketball statistics.
Statisticians most often use the field goal percentage ( FG% ) to do it, but the added bonus of the three-point shot, for instance, isn't reflected in field goal
percentage, and the ability to get to the free-throw line (where the points come much
easier) is ignored as well.
"Points per Shot Attempt" (PSA): It's a stat designed to reflect the
basics of good shooting: getting the greatest number of points from the fewest number
of attempts. Points per shot attempt is simply points divided by shot attempts . Figuring
shot attempts is like this: Add field goal attempts plus Up to the Line
(for 2 or 3 free-throws). In case of analysis of another team and if you can't know how many times the
player or the team reached the line, use (0.4 * FTA) instead.
PSA = Points / (Up to the Line + FGA)
Last year NBA league PSA average was 1.039 points per shot attempt, so by averaging, by
example, 1.133 points per attempt, an average team gains a
full point with every ten shots.
PSA is just as handy for rating individual players as it is for teams. Occasionally a player
will break into the top ten who shoots nothing but dunks, but mostly it's the long
shooters who are at the top of an individual PSA list.
 Mario Sebastiani - eBA
Stats Team - The Basketball Statistics Analysis
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