Measuring anxiety in visually-impaired people: A comparison between the linear and the nonliear IRT approaches
The present study has two main interests. First, some pending issues about the psychometric properties of the CTAC (an anxiety questionnaire for blind and visually-impaired people) are assessed using item response theory (IRT). Second, the linear model is compared to the graded response model (GRM) in terms of measurement precision, sensitivity to change, and person fit, and the results are also used to illustrate the functioning and advantages of IRT [...]
The effect of number of codes in the comparison task of two-digit numbers
Realizamos tres experimentos para evaluar la influencia del formato numérico en [...]
The External Validity of Scores Based on the Two-Parameter Logistic Model: Some Comparisons Between IRT and CTT
A theoretical advantage of item response theory (IRT) models is that [...]
Causal Inference and Learning Processes in Second Order Conditioning
Los objetivos de este trabajo fueron en primer lugar, demostrar [...]
Overshadowing and Potentiation of illness-Based Context Conditioning
In five experiments using rats, we investigated compound context-flavor conditioning. [...]
