Item Response Theory Modelling of the Trait Emotional Intelligence Questionnaire-Short Form: Item Streamlining, Differential Item Functioning, and Validity in a Swedish Multicenter Cross-Sectional Study
We applied IRT to evaluate and refine the 30-item Trait Emotional Intelligence Questionnaire-Short Form (TEIQue-SF) in a Swedish sample of 845 healthcare and social work students. IRT identified underperforming items, yielding a refined 12-item version that effectively captures trait EI with good reliability and strong convergent validity.
