The Science Literacy Inventory (SLI) is designed to measure students’ science literacy. There is a separate inventory for each grade level in Grades 3-12 and each inventory is aligned with the science subject matter content for the grade level. There are three components of the science literacy inventory: (a) a vocabulary in context section, (b) a reading comprehension section, and (c) a science writing section. These three components represent both depth and breadth of content literacy in science.
The instrument was designed and tested for validity and reliability in accordance with best practices in instrument design established by both the Educational Testing Service (ETS, 2006) and the National Council of Measurement Education (NCME, 2006) and groundbreaking work on item response theory (IRT) by Mark Wilson (2011).
This instrument may be used for K-12 students. For additional information related to this instrument, please contact Dr. Gisele Ragusa at ragusa@usc.edu