Factor Analysis of Categorical Item Responses

Authored by: R. Darrell Bock , Robert Gibbons

Handbook of Polytomous Item Response Theory Models

Print publication date:  April  2010
Online publication date:  January  2011

Print ISBN: 9780805859928
eBook ISBN: 9780203861264
Adobe ISBN: 9781135168728


 Download Chapter



Editor Introduction: This chapter takes a polytomous IRT model (Samejima’s normal model for graded responses) and applies it within a factor analytic context. This allows the evaluation of a set of data in an exploratory and confirmatory factor analytic framework. As well as demonstrating an application of a polytomous IRT model, this chapter also shows how such models can be used to evaluate model fit and the dimensionality of a set of data.

Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.