June 15, 2019
June 15, 2019
June 19, 2019
NSF Grantees Poster Session
This research documented the glance patterns and conceptual understanding of practicing engineers attempting to solve conceptual exercises with different contexts. Two mechanisms for data collection -- eye-tracking and reflective clinical interviews -- were employed to more holistically understand practicing engineers’ interaction and reasoning while solving transportation and hydraulic design problems.
Data collection involved the use of three carefully developed questions in both transportation (with 3 contextual representations) and hydraulic design (with 4 contextual representations). The process required each participant to sit in front of a computer monitor that displays the problem statement and four contexts on a single slide. The participant was required to wear the eye tracking equipment while they solved the problems and their eye movements and focus patterns were collected. During the experiment, the participants completely solve each of the presented problems. If necessary, the participants were allowed to ask clarifying questions. Once the participants completed all three problems, the eye tracking equipment was removed and the post retrospective interview was conducted and audio recorded. Each of the participants was asked the same series of questions that focus on the problem-solving process.
In total 52 practicing (28 hydraulics engineering students and 24 transportation engineering students) participated as subjects in the data collection efforts. This is in addition to the 52 practicing engineers who previously participated in data collection. Based on our current literature review, this is the largest eye-tracking / reflective interview study of problem solving that has been conducted to date.
The interview and visual attention data was used to document seven (comprehensive, experimental effect, familiarity, judgement, simplicity, speed, and stepwise) problem solving rationales in response to the transportation engineering questions and four (speed, familiarity, accuracy, and simplicity) problem solving rationales in response to the hydraulics engineering questions.
Ghodrat Abadi, M., & Gestson, S. L., & Brown, S. A., & Hurwitz, D. S. (2019, June), Board 68: Problem-solving Rationales of Practicing Transportation and Hydraulic Engineers When Provided Multiple Contextual Representations Paper presented at 2019 ASEE Annual Conference & Exposition , Tampa, Florida. 10.18260/1-2--32404
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