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Direct linkChan, David W. – Gifted Child Quarterly, 2010
Data of item responses to the Impossible Figures Task (IFT) from 492 Chinese primary, secondary, and university students were analyzed using the dichotomous Rasch measurement model. Item difficulty estimates and person ability estimates located on the same logit scale revealed that the pooled sample of Chinese students, who were relatively highly…
Descriptors: Test Items, Adaptive Testing, Scaling, Talent Identification
Peer reviewedBejar, Isaac I.; Yocom, Peter – Applied Psychological Measurement, 1991
An approach to test modeling is illustrated that encompasses both response consistency and response difficulty. This generative approach makes validation an ongoing process. An analysis of hidden figure items with 60 high school students supports the feasibility of the method. (SLD)
Descriptors: Construct Validity, Difficulty Level, Evaluation Methods, High School Students
