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Direct linkBaumfalk, Ben; Bhattacharya, Devarati; Vo, Tina; Forbes, Cory; Zangori, Laura; Schwarz, Christina – Journal of Research in Science Teaching, 2019
Developing scientific literacy about water systems is critical for K-12 students. However, even with opportunities to build knowledge about the hydrosphere in elementary classrooms, early learners may struggle to understand the water cycle (Forbes et al., [Forbes, C. T., 2015]; Gunckel et al., [Gunckel, K. L., 2012]; Zangori et al., [Forbes, C.…
Descriptors: Models, Science Curriculum, Science Instruction, Elementary School Science
Glynn, Shawn M. – Journal of Research in Science Teaching, 2012
The Trends in International Mathematics and Science Study (TIMSS) is a comparative assessment of the achievement of students in many countries. In the present study, a rigorous independent evaluation was conducted of a representative sample of TIMSS science test items because item quality influences the validity of the scores used to inform…
Descriptors: Foreign Countries, Item Response Theory, Psychometrics, Science Tests
