@conference {2082,
	title = {Impact of Item Drift on Candidate Ability Estimation},
	booktitle = {Annual Conference of the International Association for Computerized Adaptive Testing},
	year = {2011},
	month = {10/2011},
	abstract = {<p>For large operational pools, candidate ability estimates appear robust to item drift, especially under conditions that may represent \&lsquo;normal\&rsquo; amounts of drift. Even with \&lsquo;extreme\&rsquo; conditions of drift (e.g., 20\% of items drifting 1.00 logits), decision consistency was still high.</p>
},
	keywords = {item drift},
	author = {Sarah Hagge and Ada Woo and Phil Dickison}
}
