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Practitioners in engineering education, in studying and presenting their quantitative data, typically seek meaning — an inherently rhetorical activity. Data displays are an important part of this discourse. Visual conventions (pie charts, bar charts, and line charts, for example) can help or hinder the discovery of meaning in a data set. Our work concerns the visual rhetoric of this community: we...
Public policy deliberations are often informed by expert testimony. We explore the role of engineering judgment in the 2013 Congressional hearing on regulating the disposal of coal ash waste. We conclude that engineering testimony in a public policy debate suffers from a reductive, dichotomous distinction between technical judgment and policy ideas-a distinction based on the false assumption that...
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