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The Scratch Standard Is Not a Performance Standard

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Abstract

A British Prime Minister, Lord Palmerston, once remarked that only three people had ever understood a certain political situation: One was dead, the second was insane, and the third, Palmerston himself, had forgotten. The more I study the scratch and dig standards, the closer this remark hits home. I worry, however, that since I have not forgotten, I may be mad.

© 1985 Optical Society of America

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