Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Date of Award

Spring 2011

Document Type


Degree Name

Master of Arts (MA)


Department of Graduate Psychology


The prevalence of high stakes test scores as a basis for significant decisions necessitates the dissemination of accurate and fair scores. However, the magnitude of these decisions has created an environment prone to examinees resorting to cheating. To reduce the risk of cheating, multiple test forms are commonly administered. When multiple forms are employed, the forms must be equated to account for potential differences in form difficulty. If cheating occurs on one of the forms, the equating procedure may produce inaccurate results. A simulation study was conducted to examine the impact of cheating on IRT true score equating. Recovery of equated scores and scaling constants were assessed for five IRT scaling methods under various conditions. Results indicated that cheating artificially increased the equated scores of the entire examinee group administered the compromised form and no scaling methods adequately mitigated this effect. Future research should focus on the identification and removal of compromised items.

Included in

Psychology Commons