The Introductory Psychology Data

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Description

These data come from a multiple-choice examination given to 379 students in an introductory course in psychology in the Christmas exam period of 1989 at McGill. The test consisted of 100 multiple-choice items, each having four response options.

Usage

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Format

Psychkey

is a numeric vector with the correct responses for each of the 100 questions on the exam.

Psychresponses

is a numeric matrix with students' answers. Each column represents a question and each row represents a student.

Details

See ksIRT() help page for more information and examples on how to use these data with the KernSmoothIRT package.

Source

Ramsay, J.O. (2000). TestGraf: A program for the graphical analysis of multiple choice test and questionnaire data. http://www.psych.mcgill.ca/faculty/ramsay/ramsay.html.

References

Ramsay, J.O. and Abrahamowicz M. (1989). Binomial regression with monotone splines: A psychometric application. Journal of the American Statistical Association, 84(408), 906-915.

Ramsay, J.O. (2000). TestGraf: A program for the graphical analysis of multiple choice test and questionnaire data. http://www.psych.mcgill.ca/faculty/ramsay/ramsay.html.