Search results for author:"Yanwei Zhang"
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Applied Psychological Measurement Vol. 35, No. 2 (March 2011) pp. 127–144
DETECT is a nonparametric methodology to identify the dimensional structure underlying test data. The associated DETECT index, "D[subscript max]," denotes the degree of multidimensionality in data. Conditional covariances (CCOV) are the building...
Evaluation of Learning Performance of E-Learning in China: A Methodology Based on Change of Internal Mental Model of Learners
Turkish Online Journal of Educational Technology - TOJET Vol. 9, No. 1 (January 2010) pp. 70–82
This paper presents a method of assessment on how Human-Computer Interaction (HCI) and animation influence the psychological process of learning by comparing a traditional web design course and an e-learning web design course, based on the Change of ...
Annual Conference of the National Council of Measurement in Education 2006 (April 2006)
Two IRT-based procedures to estimate test reliability for a certification exam that used both adaptive (via a MST model) and non-adaptive design were considered in this study. Both procedures rely on calibrated item parameters to estimate error...
Journal of Educational Measurement Vol. 44, No. 2 (2007) pp. 117–130
A potential undesirable effect of multistage testing is differential speededness, which happens if some of the test takers run out of time because they receive subtests with items that are more time intensive than others. This article shows how a...