Given any observed number-right score on a test, a method is described for obtaining a prediction interval for the corresponding number-right score on a randomly parallel form of the same test. The interval can be written down directly from published tables of the hypergeometric distribution.
Get full access to this article
View all access options for this article.
References
1.
Lieberman, G. J. and Owen, D. B.Tables of the hypergeometric probability distribution . Stanford, Calif.: Stanford University Press, 1961.
2.
Lord, F. M.Some item analysis and test theory for a system of computer-assisted test construction for individualized instruction . Applied Psychological Measurement, 1977 , 1, 447-455.
3.
Lord, F. M. and Novick, M. R.Statistical theories of mental test scores. Reading, Mass.: Addison-Wesley, 1968.
4.
Thatcher, A. B.Relationships between Bayesian and confidence limits for predictions. Journal of the Royal Statistical Society, Series B., 1964, 26, 176-192.
