NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 3 results Save | Export
Peer reviewed Peer reviewed
Mandeville, Garrett; DeMaio, Anthony – Educational and Psychological Measurement, 1972
Descriptors: Aptitude Tests, Computer Programs, Data Analysis, Data Processing
Peer reviewed Peer reviewed
Direct linkDirect link
Reid, Christine A.; Kolakowsky-Hayner, Stephanie A.; Lewis, Allen N.; Armstrong, Amy J. – Rehabilitation Counseling Bulletin, 2007
Item response theory (IRT) methodology is introduced as a tool for improving assessment instruments used with people who have disabilities. Need for this approach in rehabilitation is emphasized; differences between IRT and classical test theory are clarified. Concepts essential to understanding IRT are defined, necessary data assumptions are…
Descriptors: Psychometrics, Methods, Item Response Theory, Aptitude Tests
Mecham, Robert C. – 1991
Occupational norms exist for some tests, and differences in the distributions of test scores by occupation are evident. Sampling error (SE), situationally specific factors (SSFs), and differences in job content (DIJCs) were explored as possible reasons for the observed differences. SE was explored by analyzing 742 validity studies performed by the…
Descriptors: Data Analysis, Estimation (Mathematics), Evaluation Utilization, Job Analysis