ALTERNATIVE MATHEMATICAL APTITUDE ITEM TYPES: DIF ISSUES

Genetics of Mathematical Aptitude

Normative variation in mathematical aptitude (MA) is relevant to many aspects of societal functioning, in particular for occupations in science, technology, engineering and mathematics (STEM). Though elements of numerosity have been identified in some animals, complex MA is uniquely human. Several studies, using a variety of designs, have investigated the heritability of MA, and the extreme end...

DIF in Personality Assessment: Does Cognitive Ability Influence Item Interpretation?

PreVisor The current study proposes and illustrates a method for examining item complexity during test construction using item response theory. We examined whether differential item functioning existed within 4 personality scales across cognitive ability groups. Results indicated that personality items do differentially function across highly disparate cognitive ability groups. Organizations ar...

Simultaneous multifactor DIF analysis and detection in Item Response Theory

In this paper, two integrated Bayesian models for differential item functioning (DIF) analysis in item response theory (IRT) models are proposed and compared. The model is integrated in the sense of modelling the responses along with the DIF determination, thus allowing DIF detection and DIF explanation in a simultaneous setup. DIF occurs because item characteristics may change according to gro...

A Comparison of Methods for Estimating Conditional Item Score Difference in Differential Item Functioning (DIF) Assessments

Examining bias in the impulsive sensation seeking (ImpSS) Scale using Differential Item Functioning (DIF) ¬タモ An item response analysis

Impulsive sensation seeking, an important index of the disinhibited pursuit of novelty with minimal concern for potential negative consequences, varies with important health behaviors like drug use and unsafe sex. Previous work reveals associations between impulsive sensation seeking and gender, age, ethnicity and education. Links to these sociodemographic variables should arise from actual dif...