IRT Analysis And Validation Of The Grit Scale: A Russian Investigation

Yulia Tyumeneva, Julia Kuzmina and Elena Kardanova

HSE Working papers from National Research University Higher School of Economics

Abstract: Previous work has already established the reliability and validity of the Grit scale, based on the classical test theory (Duckworth, Peterson, Matthews, & Kelly, 2007). This study tests the psychometric properties and the dimensionality of the scale by employing an IRT analysis of data collected from a Russian sample of 3383 15 year-old students (Study 1). The results showed that the Grit Scale is two-dimensional, but unlike the early results, both the Consistency of Interests and Perseverance of Effort subscales are quite separate measures for different traits. The construct validation (Study 2) included a retest of the obtained internal structure of the scale via CFA, and a determination of whether two subscales show reasonable patterns of correlations with external measures. Collectively, the data supports the reliability and the validity of both subscales as separate measures

Keywords: grit scale; dimensionality; IRT; CFA; construct validity (search for similar items in EconPapers)
JEL-codes: Z (search for similar items in EconPapers)
Pages: 33 pages
Date: 2014
New Economics Papers: this item is included in nep-cis
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Published in WP BRP Series: Science, Psychology / PSY, November 2014, pages 1-33

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Persistent link: https://EconPapers.repec.org/RePEc:hig:wpaper:24psy2014

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