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Data from Thissen (1982); contains 5 dichotomously scored items obtained from the Law School Admissions Test, section 6.
Phil Chalmers rphilip.chalmers@gmail.com
Thissen, D. (1982). Marginal maximum likelihood estimation for the one-parameter logistic model. Psychometrika, 47, 175-186.
data(LSAT6)
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