Jim Gleason
Item Response Theory (IRT) is a psychometric technique mathematically modeling the probability of the responses of individuals of varying ability to questions (items) on multiple-choice examinations. The author gives an introduction to IRT and explains how it can be used to assess mathematics tests from competitions to placement exams.
(pp. 8)
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George E. Andrews and Bruce C. Berndt
Ramanujan's lost notebook contains many fascinating formulae. The authors selected what they consider the top ten, and then asked experts in the field to rank them. They explain each formula, going in the order of their experts' rankings from least to most popular.
(pp. 18)
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