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ERIC Number: EJ1027044
Record Type: Journal
Publication Date: 2014-Jul
Pages: 14
Abstractor: As Provided
Reference Count: 34
ISSN: ISSN-0734-2829
Multidimensional Item Response Theory Models in Vocational Interest Measurement: An Illustration Using the AIST-R
Wetzel, Eunike; Hell, Benedikt
Journal of Psychoeducational Assessment, v32 n4 p342-355 Jul 2014
Vocational interest inventories are commonly analyzed using a unidimensional approach, that is, each subscale is analyzed separately. However, the theories on which these inventories are based often postulate specific relationships between the interest traits. This article presents a multidimensional approach to the analysis of vocational interest data, which takes these relationships into account. Models in the framework of Multidimensional Item Response Theory (MIRT) are explained and applied to a widely used German vocational interest inventory based on the RIASEC model, the AIST-R. MIRT models were more appropriate to describe the data than unidimensional models. It follows that responses to some items were not only influenced by the interest type they were designed to measure but also by another dimension. The advantages of MIRT models are discussed.
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Austria