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Increasing the Number of Replications in Item Response Theory Simulations

Automation Through SAS and Disk Operating System

Georgia State University

Carolyn Furlow

Georgia State University

Terris Ross

Georgia State University

In item response theory (IRT) simulation research, it is often necessary to use one software package for data generation and a second software package to conduct the IRT analysis. Because this can substantially slow down the simulation process, it is sometimes offered as a justification for using very few replications. This article provides researchers with simple Disk Operating System code that can be used through SAS to automate the process of data generation, analysis, and organization. By using these techniques, IRT simulation researchers can use a robust enough number of replications to be better able to generalize their findings.

Key Words: item response theory • simulation

This version was published on February 1, 2009

Educational and Psychological Measurement, Vol. 69, No. 1, 79-84 (2009)
DOI: 10.1177/0013164408324461


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