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Unread 25-03-2013, 16:41
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Re: Alliance Selection Strategy

Quote:
Originally Posted by Joe Ross View Post
What data did you use to determine it was 90% accurate?
I have the same gripe. It sounds like they have found a correlation coefficient of 0.9 between the explanatory variable (OPR) and the dependent variable (Avg. Score). In this case it is poor interpretation to say that this is 90% accurate. However, due to an R^2 value of 0.81, it would be acceptable to say that 81% of the variation in Avg. Score can be explained by variation in OPR. Saying it is 90% accurate based on a correlation coefficient of 0.9 is poor analysis of a statistical regression (it sounds like this is the mathematical tool being used).
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