A General Item Response Theory Model for Unfolding Unidimensional Polytomous Responses IRT GGUM

Author(s):

Roberts, James S.; Donoghue, John R.; Laughlin, James E.

Publication Year:

2000

Source:

Applied Psychological Measurement, v24 n1 p3-32, Mar 2000

Document Type:

Article

Page Count:

30

Subject/Key Words:

Item Response Theory (IRT), Attitude Measurement, Generalized Graded Unfolding Model (GGUM), Likert scale., Marginal Maximum Likelihood Estimation, Thurstone Scale

Read More

• http://apm.sagepub.com/content/24/1/3.abstract