@article {905, title = {ANALYTIC APPROACH OF RESPONSE PATTERN OF DIAGNOSTIC TEST ITEMS IN EVALUATING STUDENTS{\textquoteright} CONCEPTUAL UNDERSTANDING OF CHARACTERISTICS OF PARTICLE OF MATTER}, journal = {Journal of Baltic Science Education}, volume = {19}, year = {2020}, month = {October/2020}, pages = {Continuous}, type = {Original article}, chapter = {824-841}, abstract = {This research aimed to evaluate the students{\textquoteright} conceptual understanding and to diagnose the students{\textquoteright} preconceptions in elaborating the particle characteristics of matter by development of diagnostic instrument as well as Rasch model response pattern analysis approach. Data were acquired by 25 multiple-choice written test items distributed to 987 students in North Sulawesi, Indonesia. Analysis on diagnostic test items response pattern was conducted in three steps: 1) conversion of raw score to a homogenous interval unit and effectiveness analysis of measurement instruments; 2) measurement of disparity of students{\textquoteright} conceptual understanding; and 3) diagnosis of students{\textquoteright} preconception by estimation of item response pattern. The result generated information on the diagnostic and summative measurement on students{\textquoteright} conceptual understanding in elaborating the topic; information also acts as empirical evidence on the measurement{\textquoteright}s reliability and validity. Moreover, the result discovered a significant disparity between students{\textquoteright} conceptual understanding based on their educational level. It was found that the distractor item response pattern tended to be consistent, indicating a certain tendency of resistant preconception pattern. The findings are expected to be a recommendation for future researchers and educational practitioners that integrate diagnostic and summative measurement with Rasch model in evaluating conceptual understanding and diagnosing misconception. }, keywords = {Conceptual Understanding, item response, particle of matter, Rasch model}, issn = {1648-3898}, doi = {https://doi.org/10.33225/jbse/20.19.824}, url = {http://oaji.net/articles/2020/987-1602682876.pdf}, author = {Lukman Abdul Rauf Laliyo and Julhim S. Tangio and Bambang Sumintono and Mohamad Jahja and Citra Panigoro} }