Middle school students participating in energy-monitoring activities guided by their teachers during 2009–2011 gained (p < .05) in content knowledge and became more positive in their dispositions toward STEM (science, technology, engineering, and mathematics). No comparison group data were gathered for this initial study. Activities were replicated with a new group of treatment students during 2013–2014, adding a comparison group not receiving the treatment. Matched pre-post data from 2013 to 2014 confirmed gains in knowledge of environmental science and vampire power (p < .0001, effect size = .86). Aggregate dispositions toward science, mathematics, engineering and technology became more positive for treatment versus comparison group students (p = .023). Gains in STEM dispositions for girls were more positive (effect size = .37) than for boys. Implications of these findings are that hands-on, inquiry-based science activities may help increase the STEM career pipeline in ways that can lead to broader participation in STEM careers in the future.
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Note that average gains in content knowledge represent slightly more than one additional item correct on the post test versus the pretest, for a vampire power quiz with 10 items.
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The authors would like to acknowledge the encouragement and guidance received for many years and dedicate this article in the memory of Julio Lopez-Ferrao, the NSF Program Officer for the MSOSW project.
This research was funded in part by the National Science Foundation (NSF) Innovative Technology Experiences for Students and Teachers (ITEST) Grants #0833706 and #1312168.
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The authors declare that they have no conflict of interest.
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Survey items including 20 content items and STEM semantics survey
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Knezek, G., Christensen, R. Project-based learning for middle school students monitoring standby power: replication of impact on stem knowledge and dispositions. Education Tech Research Dev 68, 137–162 (2020). https://doi.org/10.1007/s11423-019-09674-3
- STEM dispositions
- STEM content knowledge
- Energy conservation
- Middle school students
- Replication study