Search results for author:"Fanmin Guo"
Total records matched: 4 Search took: 0.074 secs
Journal of Applied Testing Technology Vol. 12 (May 2011)
This study investigates measurement decision theory (MDT) as an underlying model for computer adaptive testing when the goal is to classify examinees into one of a finite number of groups. The first analysis compares MDT with a popular item response ...
Impact of Violation of the Missing-at-Random Assumption on Full-Information Maximum Likelihood Method in Multidimensional Adaptive Testing
Practical Assessment, Research & Evaluation Vol. 19, No. 2 (May 2014)
The full-information maximum likelihood (FIML) method makes it possible to estimate and analyze structural equation models (SEM) even when data are partially missing, enabling incomplete data to contribute to model estimation. The cornerstone of...
International Journal of Testing Vol. 13, No. 2 (2013) pp. 89–104
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...
Constraint-Weighted a-Stratification for Computerized Adaptive Testing with Nonstatistical Constraints: Balancing Measurement Efficiency and Exposure Control
Educational and Psychological Measurement Vol. 69, No. 1 (2009) pp. 35–49
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...