Philipp SonnleitnerPamela Inostroza FernándezCaroline Hornung2026-03-222026-03-22202610.1080/10627197.2026.2633512https://doi.org/10.1080/10627197.2026.2633512https://andeanlibrary.org/handle/123456789/79953peer reviewedenComputer scienceEducational assessmentCognitionMathematics educationItem response theoryEvaluation methodsCognitive developmentEducational researchEducational evaluationArtificial intelligenceMapping First Grader’s Numerical Development at Scale: Leveraging Cognitive Models in a Large-Scale Educational Assessmentarticle