(05-20-2014, 10:08 AM)Yvonne link Wrote:[quote author=stupac2 link=topic=10005.msg89779#msg89779 date=1400604036]
[quote author=Yvonne link=topic=10005.msg89776#msg89776 date=1400603580]Is this the SOS that will be used to help determine the playoff participants?
Almost certainly not, since it's ludicrous on its face.
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OK, good. I was worried.
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To chime in, and risk ruining the beauty of Yvonne's sarcasm, since when has using ridiculous formulas been a hurdle to selection committees?
Remember the NCAA invented the RPI, which is a version of this strength of schedule formulation, and now somehow thinks the RPI is a power rating.
To recap, the RPI is a simple formula: 25% your win-loss percentage, 50% your opponents' win-loss percentage, and 25% your opponents' opponents' win-loss percentage.
This is somewhat modified by adding a home/road adjustment. For baseball a home win counts as 0.7 wins, a home loss as 1.3 losses, a road win as 1.3 wins, and a road loss as 0.7 losses.
http://boydsworld.com/data/new_rpi.html
According to wikipedia, the basketball adjustment is 1.4 and 0.6.
http://en.wikipedia.org/wiki/Rating_Percentage_Index
Until 2011 there was also the "supersecret extra-component" of the RPI, which seemed to exist mainly so that nobody could call the NCAA on how they handled the RPI - since its secrecy meant nobody knew what a team's RPI was.
As far as I can tell, none of this is based upon any statistical, or other, analysis of anything.
I find it interesting that the NCAA got far more grief in the past using a rubric that included margin of victory than it does for using this simple, but obviously inadequate, measure to rate teams.
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And I will point out that the SEC-8 conference game schedule has a secondary benefit to this particular version of SOS. Since everyone else in your conference also gets an extra cream-puff - and a 90% chance of a win over an absolute 50% (averaging over the conference), that also gives all of your conference opponents a better win-loss percentage thus increasing your own SOS artificially.
