IRIS, a computer-interactive APL program for developing a simple order for a set of stimuli, is described. IRIS executes interactively by presenting pairs to be judged at a remote terminal. The subject responds by indicating his preference, or, by indicating that he has no preference. From a subject's judgments, IRIS determines which judgments are implied via transitivity and presents only pairs for which no implications are known. A substantial reduction in number of paired-comparisons required to recover a simple order results.
Get full access to this article
View all access options for this article.
References
1.
Cliff, N.Complete orders from incomplete data: interactive ordering and tailored testing. Psychological Bulletin, In press, 1975.
2.
Kehoe, J. and Cliff, N.INTERORD: a computer-interactive FORTRAN IV program for developing simple orders. EDUCATIONAL AND PSYCHOLOGICAL MEASUREMENT , 1975, 35, 675-678.
3.
Cliff, N. and Reynolds, T. J.A computer-interactive ordering program for pairwise preference judgments. Paper presented at meeting of the Psychometric Society, Stanford, California, 1974.
4.
Harary, F., Norman, R. and Cartwright, D.Structural models: An introduction to the theory of connected graphs. New York: Wiley, 1965.
5.
Knuth, D. E.The art of computer programing. V.3. Sorting and searching. Reading, Mass.Addison-Wesley, 1973.
6.
O'Neil, P. E. and O'Neil, E. J.A fast expected time algorithm for Boolean matrix multiplication and transitive closure. Information and control , 1973, 22, 132-138.
7.
Reynolds, T. J.An interactive preference ordering model in APL and its Monte Carlo evaluation. Unpublished thesis, University of Southern California, 1975
