Accession Number : AD0659288

Title :   NECESSITY/SUFFICIENCY AS A CONCEPTUAL MODEL FOR PREDICTOR-CRITERION RELATIONSHIPS.

Descriptive Note : Technical bull.,

Corporate Author : NAVAL PERSONNEL RESEARCH ACTIVITY SAN DIEGO CALIF

Personal Author(s) : Curtis,Ervin W.

Report Date : JAN 1967

Pagination or Media Count : 15

Abstract : The concepts of necessity and sufficiency are presented as the basis for understanding various predictor-criterion relationships. Three types of strong relationships are introduced as models for the discovery, utilization, and evaluation of predictors: (1) 'necessary-and-sufficient,' the conventional symmetrical relationship where the frequencies in two cells of the four-fold table approach zero as the association increases, (2) 'necessary-but-not-sufficient,' the asymmetrical relationship where the frequency in only the false-positive cell approaches zero, and (3) 'sufficient-but-not-necessary,' the asymmetrical relationship where the frequency in only the false-negative cell approaches zero. It is shown that the necessary-and-sufficient model is a poor basis for the discovery, utilization, and validation of necessary-but-not-sufficient and sufficient-but-not-necessary predictors. Due to over-emphasis of the necessary-and-sufficient model, it is likely that many potentially useful predictors have been discarded as useless. An improved methodology is suggested. (Author)

Descriptors :   (*NAVAL PERSONNEL, SELECTION), (*TEST CONSTRUCTION(PSYCHOLOGY), STANDARDS), APTITUDE TESTS, CORRELATION TECHNIQUES, PREDICTIONS, PSYCHOLOGICAL TESTS

Subject Categories : Psychology
      Personnel Management and Labor Relations

Distribution Statement : APPROVED FOR PUBLIC RELEASE