The Rasch measurement model employs the principles of Item Response Theory (IRT) to analyze test and questionnaire data. On an assessment on which a person answers questions either right or …

Rasch measurement theory analysis in R. CRC Press.

One-Parameter Logistic Models III.

This paper completes Rasch's proof, interprets the structural characteristics of his model and shows that it is the only rating scale model which produces the measurement objectivity necessary for scientific …

When students receive the same score on a test, does that mean they know the same amount about the topic? The answer to this question is more complex than it may first appear. This paper compares …

Upon reading this chapter—the new Rasch learner will have a solid foun-dation which will enable a basic Rasch analysis to be carried out. Also, the new Rasch learner will be able to confidently read articles …

The one-parameter logistic model (1PL) or the equivalent Rasch model (Rasch, 1960) is a logistic regression model in a slightly altered form The probability of the correct response, P(Xis = 1), is …