Hostname: page-component-6898cfcb55-kwdml Total loading time: 0 Render date: 2026-11-11T05:12:03.192Z Has data issue: false hasContentIssue false

Optimal Sequential Designs for On-line Item Estimation

Published online by Cambridge University Press:  01 January 2025

Douglas H. Jones*
Affiliation:
Graduate School of Management, Rutgers, The State University of New Jersey
Zhiying Jin
Affiliation:
Graduate School of Management, Rutgers, The State University of New Jersey
*
Requests for reprints should be sent to Douglas H. Jones; Graduate School of Management; Rutgers, The State University; 92 New Street; Newark, NJ 07102.

Abstract

Replenishing item pools for on-line ability testing requires innovative and efficient data collection designs. By generating local D-optimal designs for selecting individual examinees, and consistently estimating item parameters in the presence of error in the design points, sequential procedures are efficient for on-line item calibration. The estimating error in the on-line ability values is accounted for with an item parameter estimate studied by Stefanski and Carroll. Locally D-optimal n-point designs are derived using the branch-and-bound algorithm of Welch. In simulations, the overall sequential designs appear to be considerably more efficient than random seeding of items.

Information

Type
Original Paper
Copyright
Copyright © 1994 The Psychometric Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable