@article {2313,
	title = {Speededness and Adaptive Testing},
	journal = {Journal of Educational and Behavioral Statistics},
	volume = {38},
	number = {4},
	year = {2013},
	pages = {418-438},
	abstract = {<p>
	Two simple constraints on the item parameters in a response\&ndash;time model are proposed to control the speededness of an adaptive test. As the constraints are additive, they can easily be included in the constraint set for a shadow-test approach (STA) to adaptive testing. Alternatively, a simple heuristic is presented to control speededness in plain adaptive testing without any constraints. Both types of control are easy to implement and do not require any other real-time parameter estimation during the test than the regular update of the test taker\&rsquo;s ability estimate. Evaluation of the two approaches using simulated adaptive testing showed that the STA was especially effective. It guaranteed testing times that differed less than 10 seconds from a reference test across a variety of conditions.</p>
},
	doi = {10.3102/1076998612466143},
	url = {http://jeb.sagepub.com/cgi/content/abstract/38/4/418},
	author = {van der Linden, Wim J. and Xiong, Xinhui}
}
