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Download full textMehmet Fatih Doguyurt; Seref Tan – International Journal of Assessment Tools in Education, 2025
This study investigates the impact of violating the local item independence assumption by loading certain items onto a second dimension on test equating errors in unidimensional and dichotomous tests. The research was designed as a simulation study, using data generated based on the PISA 2018 mathematics exam. Analyses were conducted under 36…
Descriptors: Equated Scores, Test Items, Mathematics Tests, International Assessment
