01695nas a2200145   4500008003900000245009300039210006900132490000700201520118000208100001301388700001901401700001501420700001101435856010301446       2016                          d00aUsing Response Time to Detect Item Preknowledge in Computer?Based Licensure Examinations0 aUsing Response Time to Detect Item Preknowledge in ComputerBased0 v353 aThis article addresses the issue of how to detect item preknowledge using item response time data
in two computer-based large-scale licensure examinations. Item preknowledge is indicated by an
unexpected short response time and a correct response. Two samples were used for detecting item
preknowledge for each examination. The first sample was from the early stage of the operational
test and was used for item calibration. The second sample was from the late stage of the
operational test, which may feature item preknowledge. The purpose of this research was to
explore whether there was evidence of item preknowledge and compromised items in the second
sample using the parameters estimated from the first sample. The results showed that for one
nonadaptive operational examination, two items (of 111) were potentially exposed, and two
candidates (of 1,172) showed some indications of preknowledge on multiple items. For another
licensure examination that featured computerized adaptive testing, there was no indication of item
preknowledge or compromised items. Implications for detected aberrant examinees and
compromised items are discussed in the article.1 aH., Qian1 aStaniewska, D.1 aReckase, M1 aWoo, A  uhttp://iacat.org/using-response-time-detect-item-preknowledge-computerbased-licensure-examinations