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Talento-Miller, Eileen; Guo, Fanmin; Han, Kyung T. – International Journal of Testing, 2013
When power tests include a time limit, it is important to assess the possibility of speededness for examinees. Past research on differential speededness has examined gender and ethnic subgroups in the United States on paper and pencil tests. When considering the needs of a global audience, research regarding different native language speakers is…
Descriptors: Adaptive Testing, Computer Assisted Testing, English, Scores
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Cheng, Ying; Chang, Hua-Hua; Douglas, Jeffrey; Guo, Fanmin – Educational and Psychological Measurement, 2009
a-stratification is a method that utilizes items with small discrimination (a) parameters early in an exam and those with higher a values when more is learned about the ability parameter. It can achieve much better item usage than the maximum information criterion (MIC). To make a-stratification more practical and more widely applicable, a method…
Descriptors: Computer Assisted Testing, Adaptive Testing, Test Items, Selection
Talento-Miller, Eileen; Guo, Fanmin; Han, Kyung T. – Graduate Management Admission Council, 2012
When power tests include a time limit, it is important to assess the possibility of "speededness" for examinees. Research on differential speededness in the past has included looking at gender and ethnic subgroups in the United States on paper and pencil tests. The needs of a global audience necessitated, and the availability of computer…
Descriptors: College Entrance Examinations, Graduate Study, Business Administration Education, Timed Tests