Exclusively visual analysis of classroom group interactions

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Large-scale audiovisual data that measure group learning are time consuming to collect and analyze. As an initial step towards scaling qualitative classroom observation, we qualitatively coded classroom video using an established coding scheme with and without its audio cues. We find that interrater reliability is as high when using visual data only - without audio - as when using both visual and audio data to code. Also, interrater reliability is high when comparing use of visual and audio data to visual-only data. We see a small bias to code interactions as group discussion when visual and audio data are used compared with video-only data. This work establishes that meaningful educational observation can be made through visual information alone. Further, it suggests that after initial work to create a coding scheme and validate it in each environment, computer-automated visual coding could drastically increase the breadth of qualitative studies and allow for meaningful educational analysis on a far greater scale.




Tucker, L., Scherr, R. E., Zickler, T., & Mazur, E. (2016). Exclusively visual analysis of classroom group interactions. Physical Review Physics Education Research, 12(2). https://doi.org/10.1103/PhysRevPhysEducRes.12.020142

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