Refinement of Stout's Procedure for Assessing Latent Trait Unidimensionality

Currently, the most popular method of measuring an individual's ability is based on Item Response Theory (IRT). One of the most critical assumptions on which this IRT methodology is based is "unidimensionality". In general this assumption means that the items measure one and only one dimension or ability. In practice, however, this assumption cannot be strictly met because a multitude of factors influence test performance. What is actually required is that only one dominant trait influence test performance as a whole.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Education

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Nandakumar, Ratna

Contributors dc:contributor

• Stout, William F.

• Education, Tests and Measurements
• Psychology, Psychometrics

Identifier

(UMI)AAI8803147

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/69160