Accession Number : AD0019058


Title :   A SUGGESTED USE OF SEQUENTIAL ANALYSIS IN PERFORMANCE ACCEPTANCE TESTING


Corporate Author : ILLINOIS UNIV AT THE MEDICAL CENTER CHICAGO COLL OF DENTISTRY


Personal Author(s) : Evans, Rupert N


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/019058.pdf


Report Date : Sep 1953


Pagination or Media Count : 33


Abstract : The advantages, limitations, and means of using sequential analysis in performance acceptance testing are discussed. Sequential sampling appears to be useful in testing whenever (1) testing time per test item is high in relation to the time required to score each test item, (2) the test is primarily designed to determine whether a person passes or fails, (3) there is a need for testing more than about 100 persons on the same test, either in 1 group or in a number of groups, and (4) there is negligible correlation between items when criterion scores are held constant. Sequential sampling takes item difficulty and item discrimination into account when discrimination score values (norms) are established. Sequential sampling can readily be adapted to changing standards of accepting people, with no revision of the norms previously set up. Ordinarily, sequential sampling will give about the same accuracy as a fixed-length test, with about half of the testing time and about half of the testing cost.


Descriptors :   *ACCEPTANCE TESTS , *SEQUENTIAL ANALYSIS , ACCURACY , DISCRIMINATION , COSTS , SAMPLING , PERFORMANCE(ENGINEERING)


Subject Categories : Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE