I am one of those people whose identity is hidden by the letters—ETS—which Dr. Banesh Hoffmann has attacked with such determination. My responsibility, shared directly with two colleagues and indirectly with many more, is the preparation of science tests. I have a doctorate in chemistry from the Ohio State University, and I spent a postdoctoral year at the University of California. I have been on the faculties of three good universities, Lehigh, Kansas State, and Rutgers, but I must admit that there are many things that I do not know. Contrary to Dr. Hoffmann's suspicion, I believe that my colleagues and I do know a few things.

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