An item response theory application to shorten and validate the STEM interest complexity measure

2016-04-12
Toker, Yonca
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The purpose of the present study was to shorten the 122-item STEM Interest Complexity Measure which is a valid measure of interests towards increasingly complex tasks covering the domains of numeric, symbolic, spatial, and STEM-ideas within the Science, Technology, Engineering, and Mathematics (STEM) areas. In a sample of 418 undergraduates enrolled in STEM majors, polytomous IRT using the Graded Response Model was applied. Items that best discriminated across interest trait levels were retained. The 43-item shortened version of the measure offered equivalent validity estimates with vocational criteria of STEM-GPA, STEM-major satisfaction, and intentions to pursue increasingly complex STEM occupations. The study contributes to IRT applications in scale refinement and to producing a practical tool in vocational interest assessments.
http://www.aera.net/Publications/Online-Paper-Repository/AERA-Online-Paper-Repository
https://hdl.handle.net/11511/87599
Annual Meeting of the American Educational Research Association, 8 - 12 April 2016
Department of Psychology, Conference / Seminar

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Citation Formats
Y. Toker, “An item response theory application to shorten and validate the STEM interest complexity measure,” presented at the Annual Meeting of the American Educational Research Association, 8 - 12 April 2016, Washington D.C., United States Of America, 2016, Accessed: 00, 2021. [Online]. Available: http://www.aera.net/Publications/Online-Paper-Repository/AERA-Online-Paper-Repository.
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