Development of a Multidimensional Mathematical Literacy Test in an Application Platform for Grade 9 Students with Feedback Integration
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Abstract
This research aimed to develop a Multidimensional Mathematical Literacy Test in an application platform for Grade 9 students with integrated feedback. The sample consisted of 483 students from the Secondary Educational Service Area Office in Tak Province, selected through a multi-stage sampling method. The results from developing the test using Multidimensional Item Response Theory (MIRT) indicated that the assessment demonstrated high quality in terms of validity. A panel of five experts evaluated the content for coherence and relevance, with 30 items meeting the established criteria and achieving Item-Objective Congruence (IOC) values ranging from .60 to 1.00. The data were analyzed using MIRT with the NOHARM software, applying a multivariate cumulative normal model. The analysis revealed that the test exhibited multidimensional discrimination (MDISC) values ranging from 0.247 to 3.029, and difficulty (MDIFF) values ranging from -1.023 to 2.830. The item information function indicated that the test provided the most information for students within the moderate ability range.
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