<![CDATA[One of the challenges in chemistry learning is students’ low ability to solve science literacy problems based on multiple representations, particularly in thermochemistry, which is still dominated by symbolic evaluation. This condition indicates the need for more comprehensive evaluation instruments. Therefore, this study was conducted to develop a test instrument using the 4D model from Sivasailam Thiagarajan, modified to 3D (Define, Design, Development). The definition stage includes analyzing needs, students, tasks, concepts, scientific literacy, and multiple representations; the design stage involves determining the instrument form, grid, and question development; and the development stage consists of validation testing, empirical testing, and student profile testing. The research results show that the instrument is valid (90.9%), highly practical (76.66%), with a variety of difficulty levels and an average discrimination index of 0.30, which was categorized as fair. From 30 items, the validity test resulted in 18 valid items with an initial high reliability (0.815). However, students’ science literacy profile is still low (41.15%) because they are not yet accustomed to tackling multiple representation-based literacy. It is recommended that teachers train students to work on science literacy problems based on multiple representations.]]>
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