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Archive for May 7th, 2010

From Decision Science News:

What of the adage “the best predictor of future performance is past performance”? It seems less true than Sting’s observation “History will teach us nothing“. Let’s continue the investigation.

DSN did a nice analysis on a ton of baseball game out comes to see whether a team who had just won a game was more likely to win the next game.   There have been other studies like this involving basketball players “hot streaks.” Similar results revealed… well, it’s a crap shoot shot to shot, game to game.

Now, over the long haul winning records, shot percentages indicate there is some skill involved.  But at the micro level it just ain’t true!

Now why do we as fans, observers, interested parties believe in hot streaks, win streaks, etc. etc?   is it a side effect of some other useful thing we do in associating events?  or is there really some direct value in assuming immediate past performance indicates a similar future performance?

what can we test to figure that out?

the nba hot streak article has some insights….

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