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Ryoo, Ji Hoon; Tai, Robert H.; Skeeles-Worley, Angela D. – Research in Science Education, 2020
In longitudinal studies, measurement invariance is required to conduct substantive comparisons over time or across groups. In this study, we examined measurement invariance on a recently developed instrument capturing student preferences for seven instructional strategies related to science learning and career interest. We have labeled these seven…
Descriptors: Guidelines, Longitudinal Studies, Comparative Analysis, Error of Measurement
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Kim, Hanna – Science Activities: Classroom Projects and Curriculum Ideas, 2008
Testing the pH of various liquids is one of the most popular activities in 5th- through 8th-grade classrooms. The author presents an extensive pH-testing lesson based on a 5E (engagement, exploration, explanation, extension, and evaluation) teaching model. The activity provides students with the opportunity to learn about pH and how it relates to…
Descriptors: Scientific Research, Teaching Models, Error of Measurement, Science Instruction