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Quantitative Psychology Commons

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Full-Text Articles in Quantitative Psychology

The Effects Of Scaling On Trends Of Development: Classical Test Theory And Item Response Theory, Weldon Z. Smith Apr 2016

The Effects Of Scaling On Trends Of Development: Classical Test Theory And Item Response Theory, Weldon Z. Smith

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The scale metrics used in educational testing are often arbitrary, and this can impact interpretation of scores on measurements. Both classical test theory sum scores and item response theory estimates measure the same underlying dimension, but differences in the two scales may lead one to be more preferential than the other in interpreting data. Mismatch between individual ability and test difficulty can further result in difficulties in correctly interpreting trends of development in longitudinal data. A previous limited simulation by Embretson (2007) demonstrated that classical test theory sum scores result in misinterpretation of linear trends of development, and that item …


The Cyber Aggression In Relationships Scale: A New Multidimensional Measure Of Technology-Based Intimate Partner Aggression, Laura E. Watkins, Rosalita C. Maldonado, David Dilillo Jan 2016

The Cyber Aggression In Relationships Scale: A New Multidimensional Measure Of Technology-Based Intimate Partner Aggression, Laura E. Watkins, Rosalita C. Maldonado, David Dilillo

Department of Psychology: Faculty Publications

The purpose of this study was to develop and provide initial validation for a measure of adult cyber intimate partner aggression (IPA): the Cyber Aggression in Relationships Scale (CARS). Drawing on recent conceptual models of cyber IPA, items from previous research exploring general cyber aggression and cyber IPA were modified and new items were generated for inclusion in the CARS. Two samples of adults 18 years or older were recruited online. We used item factor analysis to test the factor structure, model fit, and invariance of the measure structure across women and men. Results confirmed that three-factor models for both …