StATS: Evaluating the AUC for an ROC curve (July 27, 2004).

Someone asked me where I got the following guidance for Area Under the Curve (AUC) for a Receiver Operating Characteristic (ROC) curve.

I cannot find where I got these numbers. It must be a sign of senility on my part. I'll keep looking, but if anyone else knows of justification for this or any other rule, let me know.

I did find a web page ( that suggested this rule

but the evenness of the intervals strikes me as rather arbitrary. I'll keep looking.

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