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ERIC Number: ED126112
Record Type: Non-Journal
Publication Date: 1976-May
Reference Count: N/A
VARSEL: Variable Selection for Multiple-Purpose Prediction Systems in the Absence of External Criteria.
Gould, R. Bruce; Christal, Raymond E.
The absence of suitable external criteria is a recurrent problem for test, battery, and inventory developers in selecting items or tests for inclusion in final operational instruments. This report presents a computing algorithm developed for use when no adequate external selection criterion is available. The algorithm uses a multiple linear regression technique and an accretion variable selection process to start with a large pool of variables and select a minimum subset which can account for the domain of reliable variance measured by all variables in the pool. Two sample applications are presented: (1) selection of a subset of tests from a battery of 56 tests; and (2) selection of a subset of job attitude items from a pool of 348 items. (Author)
Publication Type: Reports - Research
Education Level: N/A
Sponsor: Air Force Human Resources Lab., Brooks AFB, TX.
Authoring Institution: Air Force Human Resources Lab., Brooks AFB, TX. Occupational and Manpower Research Div.