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Free, publicly-accessible full text available June 22, 2026
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Student during-learning data such as think-alouds or writing are often coded for use of strategies or moves, but less often for what knowledge the student is using. However, analyzing the content of such products could yield much valuable information. A promising technique for analyzing the content of student products is semantic network analysis, more widely used in political science, communication, information science, and some other social science disciplines. We reviewed the small literature on semantic network analysis (SemNA) of individuals with relevant outcomes to identify which network analysis metrics might be suitable. The Knowledge Integration (KI) framework from science education is discussed as focusing on amount and structure of student knowledge, and therefore especially relevant for testing with SemNA metrics. We then re-analyze three published think-aloud data sets from undergraduate students learning introductory biology with the metrics found in the literature review. Significant relations with posttest comprehension score are found for number of nodes and edges; degree and betweenness centrality; diameter, and mean distance. Inconsistent results possibly due to text-specific features were found for number of clusters, LCC, and density, and null results were found for PageRank centrality and centralization degree. Basic principles from the KI framework are supported—amount of information (nodes), connections (edges, average degree), key ideas (degree and betweenness centrality) and length of causal chains (mean distance and diameter) are related to posttest comprehension, but not density or LCC. Possible explanations for slight variations across data sets are discussed, and alternative theories and metrics are offered.more » « lessFree, publicly-accessible full text available December 1, 2025
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It is well-known that a significant population of doctoral students drop out of their graduate programs and face or develop significant mental health distress. Stress plays a role in exacerbating mental health distress in both engineering PhD programs and more broadly for university students in general. While rates of dropout for engineering students may not differ strongly from other disciplines, engineering students have been suggested to be less likely to seek help from university services for well-being concerns. In the first year of our three‐year NSF RFE project, we interviewed doctoral engineering students to identify major stressors present in the doctoral engineering experience at the present study’s focal institution. In the second year of our project, we had developed the Stressors for Doctoral Students Questionnaire - Engineering (SDSQ-E), a novel survey which measures the frequency and severity of these top sources of stress for doctoral engineering students. The SDSQ-E was designed using the results of first year interviews and a review of the literature on stress for doctoral engineering students. In year three, we completed analysis of the year 3 data and conducted further testing of the SDSQ-E. We also developed a discipline-general form of the survey, called the SDSQ-G. In October-December 2023, we administered these surveys to engineering PhD students as a subset of a large sample of graduate students at two institutions. Further, we tested the potential for the SDSQ-E to predict factors such as anxiety, depression, or intention to persist in doctoral programs. We broadly summarize these survey distributions including tests of the SDSQ-E for validity, fairness, and reliability.more » « less
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Doctoral students experience high rates of mental health distress and dropout; however, the mental health and wellness of engineering doctoral students is understudied. Studies of student persistence, wellness, and success often aggregate fields together, such as by studying all engineering students. Thus, little work has considered the experiences of biomedical engineering (BME) doctoral students, despite differences between doctoral BME research, course content, and career expectations compared with other engineering disciplines. In this qualitative interview case study, we explore stressors present in the BME graduate experience that are unique from engineering students in other disciplines. Methods We analyzed a longitudinal interview study of doctoral engineering students across four timepoints within a single academic year, consisting of a subsample (n=6) of doctoral students in a BME discipline, among a larger sample of engineering doctoral students (N=55). BME students in the sample experienced some themes generated from a larger thematic analysis differently compared with other engineering disciplines. These differences are presented and discussed, grounded in a model of workplace stress. Results BME participants working in labs with biological samples expressed a lack of control over the timing and availability of materials for their research projects. BME participants also had more industry-focused career plans and described more commonly coming to BME graduate studies from other fields (e.g., another engineering major) and struggling with the scope and content of their introductory coursework. A common throughline for the stressors was the impact of the interdisciplinary nature of BME programs, to a greater extent compared with other engineering student experiences in our sample. Conclusions We motivate changes for researchers, instructors, and policymakers which specifically target BME students and emphasize the importance of considering studies at various unit levels (university department level vs college level vs full institution) when considering interventions targeting student stress and wellness.more » « less
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Recent international calls have been made to build capacity in engineering by increasing the number of scholars using research-based instructional practices in engineering classrooms. Training traditional engineering professors to conduct engineering education research (EER) supports this goal. Previous work suggests that engineering professors interested in performing social sciences or educational research require structured support when making this transition. We interviewed 18 professors engaged with a grant opportunity in the United States that supports professors conducting EER for the first time through structured mentorship. Thematic analysis of interview data resulted in four findings describing common perceptions and experiences of traditional engineering professors as they begin to conduct formalised EER: motivation to conduct EER, institutional support and barriers, growth in knowledge, and integrating with EER culture. Within these findings, barriers to entering EER were uncovered with implications for professors interested in EER, funding agencies, and prospective mentors, resulting in suggestions for improving access to EER for professors developing as teaching scholars.more » « less
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