Scale Drift in On-Line Calibration
Abstract
Recent advances in psychometrics and computer technology encourage the development of model-based methods of individualized testing on a microcomputer, where each examines receives short tests and the number of pretest items that can be administered is severely restricted. On-line (i.e., data is collected on operational equipment) methods for calibrating pretest items in this setting face new challenges. In the context of adaptive testing, two LOGIST-based methods of on-line calibration were developed and are described. These two methods are tried out and compared in a simulation study using data for the CAT-ASVAB.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1988
- Accession Number
- ADA196439
Entities
People
- Martha L. Stocking
Organizations
- Educational Testing Service