Accession Number : AD0682223

Title :   SOME APPLICATIONS OF PROCEDURES FOR ALLOCATING TESTING TIME.

Descriptive Note : Technical rept.,

Corporate Author : EDUCATIONAL TESTING SERVICE PRINCETON N J

Personal Author(s) : Novick,Melvin R. ; Thayer,Dorothy T.

Report Date : JAN 1969

Pagination or Media Count : 44

Abstract : Detailed computations and data analysis using an algorithm for allocating testing time, when using regression and unit weights respectively, are presented, using data especially selected to illustrate how these techniques overcome the major difficulties, both computational and methodological, that may arise in such analyses. Several further sets of data are analyzed to compare the composite scale correlations obtained with a criterion using combinations of original or optimal time allocations and unit or optimal weights for homogeneous subscales. The primary purpose of this paper is to show how time allocation methodology can be used to investigate certain important substantive questions. Some evidence is found to suggest that for certain applications the gain from using optimal lengths and optimal weights instead of original lengths and unit weights for subtests may be worthwhile. It is found that the use of the optimal time procedure with unit weights sometimes leads to results that are nearly as satisfactory as optimal times with regression weights. Finally, some evidence is found to suggest that quite different time allocations may be required for different subgroups. (Author)

Descriptors :   (*APTITUDE TESTS, TIME), (*ACHIEVEMENT TESTS, RELIABILITY), (*TEST CONSTRUCTION(PSYCHOLOGY), MATHEMATICAL MODELS), ALGORITHMS, OPTIMIZATION, WEIGHT, SCALE, MATRICES(MATHEMATICS), CORRELATION TECHNIQUES, ERRORS, TABLES(DATA)

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE