Cognitive Processing Determinants of Item Difficulty on the Verbal Subtests of the Armed Services Vocational Aptitude Battery
ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA
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The purpose of this research was to identify the cognitive processing operations, stores, and strategies involved in performance on the verbal subtests of the Armed Services Vocational Aptitude Battery ASVAB 8910. The project was conducted in two parts. The research began with a review of recent work in verbal information processing. A model of verbal performance was developed as a conceptual framework for identifying and operationalizing processing components. Theoretical and operational definitions were drafted for cognitive processes thought to underlie performance on the ASVAB Word Knowledge WK and Paragraph Comprehension PC subtests. The operational definitions were used to rate the WK and PC items on two ASVAB forms. In Part two, item response data were modeled for eight groups Fiscal Year 1981 Army applicants and accessions using Rasch and Linear Logistic Latent Trait LLLT methods. The relative effects of the operationalized verbal processes on item difficulty were determined using the LLLT algorithms.