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Developing a Learning Progression of Buoyancy to Model Conceptual Change: A Latent Class and Rule Space Model Analysis

Gao, Yizhu; Zhai, Xiaoming; Andersson, Björn Håkan; Zeng, Pingfei; Xin, Tao
Journal article; AcceptedVersion; Peer reviewed
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RISE-FINAL.pdf (814.4Kb)
Year
2018
Permanent link
http://urn.nb.no/URN:NBN:no-74974

CRIStin
1592809

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Appears in the following Collection
  • CEMO Centre for Educational Measurement [152]
  • CRIStin høstingsarkiv [15868]
Original version
Research in Science Education. 2018, 1-20, DOI: https://doi.org/10.1007/s11165-018-9736-5
Abstract
We applied latent class analysis and the rule space model to verify the cumulative characteristic of conceptual change by developing a learning progression for buoyancy. For this study, we first abstracted seven attributes of buoyancy and then developed a hypothesized learning progression for buoyancy. A 14-item buoyancy instrument was administered to 1089 8th grade students to verify and refine the learning progression. The results suggest four levels of progression during conceptual change when 8th grade students understand buoyancy. Students at level 0 can only master Density. When students progress to level 1, they can grasp Direction, Identification, Submerged volume, and Relative density on the basis of the prior level. Then, students gradually master Archimedes’ theory as they reach level 2. The most advanced students can further grasp Relation with motion and arrive at level 3. In addition, this four-level learning progression can be accounted for by the Qualitative–Quantitative–Integrative explanatory model.
 
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