![]() An adapted standardized picture science assessment (PSA), the Expressive One Word Picture Vocabulary Test (EOWPVT) at posttest, and the Depth of Knowledge (DOK) at pretest and posttest. 46 second-grade girls with varying levels of English language proficiency from four classrooms in a school that focuses on STEM learning for girls. ![]() Participants were randomly assigned to receive science vocabulary lessons through the LMS. Students were exposed to the lessons through a Learning Management System (LMS) for about 30 minutes per day for one month. In this study, we analyze student utterances related to Earth Sciences such as Rocks and Volcanoes. Reliability and predictive validity will be examined based on Standards for Educational and Psychological Testing (Test Standard, 2014). This poster will present results of the reliability and predictive validity of expressive vocabulary and content measures used in an English language vocabulary program (ELVA) designed to improve the vocabulary knowledge and language proficiency of second-grade students in the US.
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