The Law School Admission Test (LSAT), Section VI
The LSAT is a classical example in educational testing for measuring ability traits. This test was designed to measure a single latent ability scale.
A data frame with the responses of 1000 individuals to 5 questions.
This LSAT example is a part of a data set given in Bock and Lieberman (1970).
Bartholomew, D., Steel, F., Moustaki, I. and Galbraith, J. (2002) The Analysis and Interpretation of Multivariate Data for Social Scientists. London: Chapman and Hall.
Bock, R. and Lieberman, M. (1970) Fitting a response model for n dichotomously scored items. Psychometrika, 35, 179–197.
## Descriptive statistics for LSAT data dsc <- descript(LSAT) dsc plot(dsc)
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