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st: Akaike's Information Criterion

From   Fred Wolfe <>
Subject   st: Akaike's Information Criterion
Date   Mon, 30 Oct 2006 05:16:52 -0600

Does anyone have a rule of thumb regarding how much difference in Akaike's Information Criterion is considered to be important. I am familiar with the rough rule that is available with BIC. For example, in comparing nested models 3 and 4, is model 4 "better" or "slightly better," of doesn't it make any sense to characterize it this way. I am trying to write a brief description in the methods section of a "medical" paper to aid readers in understanding the AIC and differences between models.

Model 1 5288.47***
Model 2 5253.47***
Model 3 5254.87***
Model 4 5241.32***



Fred Wolfe
National Data Bank for Rheumatic Diseases
Wichita, Kansas
Tel +1 316 263 2125

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