arXiv subjects

Matthew Dew

Publications and source records attributed to Matthew Dew.

9 recordsLinked to original sources

arXiv2026

CURE-like, not cure-all: Varying broad relevance in experimentation labs produces similar student outcomes

Physics labs that engage students in practices authentic to experimental physics (experimentation-based labs) are being implemented to modernize the undergraduate physics curriculum and broaden participation in physics. Accordingly, prior research has positioned Course-Based Undergraduate Research Experiences (CUREs) as a means to extend the benefits of authentic undergraduate research experiences to more students. However, CUREs are resource-intensive and difficult to implement; a continuous stream of novel research projects adaptable for undergraduate courses is rare. Further, little is known about which specific components of a CURE are crucial to improving student outcomes and which components could be scaled back to improve feasibility for a wider range of class settings. In this study, we aim to isolate the component of broad relevance by running two experimentation-based labs in parallel: one "CURE-like" that increases broad relevance through the use of muon detectors, and one that uses equipment typical to an introductory physics lab and not relevant beyond the classroom. We measure student outcomes for both experimental critical thinking skills and attitudes towards physics labs. We use hierarchical linear modeling to compare student outcomes between the two labs. We find that both experimentation-based labs produce similar student outcomes. Our results suggest that increased levels of broad relevance may not inherently improve gains in student learning or attitudes. Future work should further investigate which components of different experimentation-based lab formats are associated with gains in student outcomes. Although this study did not implement a full CURE, our findings align with a growing body of evidence challenging the idea that CUREs are uniquely positioned to achieve superior student outcomes over other well-designed experimentation-based labs.

physics.ed-ph↗

arXiv2025

Share, Rotate, Split: The Effects of Group Work Role Distributions on Student Outcomes

Education literature recommends many different strategies for structuring student group work in labs. Many of these strategies, however, have not been sufficiently evaluated for their effects on student outcomes. One prior study suggested that sharing roles, rather than splitting roles, in lab groups can boost students' physics interest and self-efficacy. Here, we expand upon this literature by evaluating the effects of a broader range of role distributions across several student outcomes from a large sample at two different institutions. We developed a survey item to probe the ways students distribute their roles in lab groups. The item asks for the percent of time in lab they spent working together on lab roles (sharing), working alone on roles but rotating each session (rotating), and working alone in the same role throughout the semester (splitting). We employed hierarchical linear modeling to measure the effects of these role distributions on student critical thinking, self-efficacy, perceived agency, belonging, and sense of recognition based on survey items specific to physics lab contexts. We found that role distributions did not differentially impact student critical thinking. We also found that sharing roles tended to have a positive impact on student attitudes; splitting had a negative effect on attitudes; and rotating fell in between. Statistical significance varied across these attitudinal outcomes. Our findings invite further research and controlled studies to better understand the apparent benefits of sharing, rotating, and splitting roles in introductory physics labs.

physics.ed-ph↗

arXiv2023

What topics of peer interactions correlate with student performance in physics courses?

Research suggests that interacting with more peers about physics course material is correlated with higher student performance. Some studies, however, have demonstrated that different topics of peer interactions may correlate with their performance in different ways, or possibly not at all. In this study, we probe both the peers with whom students interact about their physics course and the particular aspects of the course material about which they interacted in six different introductory physics courses: four lecture courses and two lab courses. Drawing on methods in social network analysis, we replicate prior work demonstrating that, on average, students who interact with more peers in their physics courses have higher final course grades. Expanding on this result, we find that students discuss a wide range of aspects of course material with their peers: concepts, small-group work, assessments, lecture, and homework. We observe that in the lecture courses, interacting with peers about concepts is most strongly correlated with final course grade, with smaller correlations also arising for small-group work and homework. In the lab courses, on the other hand, small-group work is the only interaction topic that significantly correlates with final course grade. We use these findings to discuss how course structures (e.g., grading schemes and weekly course schedules) may shape student interactions and add nuance to prior work by identifying how specific types of student interactions are associated (or not) with performance.

physics.ed-ph↗

arXiv2023

New perspectives on student reasoning about measurement uncertainty: More or better data

Uncertainty is an important and fundamental concept in physics education. Students are often first exposed to uncertainty in introductory labs, expand their knowledge across lab courses, and then are introduced to quantum mechanical uncertainty in upper-division courses. This study is part of a larger project evaluating student thinking about uncertainty across these contexts. In this research, we investigate advanced physics student thinking about uncertainty by asking them conceptual questions about how a hypothetical distribution of measurements would change if `more' or `better' data were collected in four different experimental scenarios. The scenarios include both classical and quantum experiments, as well as experiments that theoretically result in an expected single value or an expected distribution. This investigation is motivated by our goal of finding insights into students' potential point- and set-like thinking about uncertainty and of shining light on the limitations of those binary paradigms.

physics.ed-ph↗

arXiv2023

Context affects student thinking about sources of uncertainty in classical and quantum mechanics

Measurement uncertainty is an important topic in the undergraduate laboratory curriculum. Previous research on student thinking about experimental measurement uncertainty has focused primarily on introductory-level students' procedural reasoning about data collection and interpretation. In this paper, we extended this prior work to study upper-level students' thinking about sources of measurement uncertainty across experimental contexts, with a particular focus on classical and quantum mechanics contexts. We developed a survey to probe students' thinking in the generic question "What comes to mind when you think about measurement uncertainty in [classical/quantum] mechanics?" as well as in a range of specific experimental scenarios and interpreted student responses through the lens of availability and accessibility of knowledge pieces. We found that limitations of the experimental setup were most accessible to students in classical mechanics while principles of the underlying physics theory were most accessible to students in quantum mechanics, even in a context in which this theory was not relevant. We recommend that future research probe which sources of uncertainty experts believe are relevant in which contexts and how instruction in both classical and quantum contexts can help students draw on appropriate sources of uncertainty in classical and quantum experiments.

physics.ed-ph↗

arXiv2023

Group Dynamics in Inquiry-based Labs: Gender Inequities and the Efficacy of Partner Agreements

Recent studies provide evidence that social constructivist pedagogical methods such as active learning, interactive engagement, and inquiry-based learning, while pedagogically more effective, can enable inequities in the classroom. By conducting a quantitative empirical examination of gender-inequitable group dynamics in two inquiry-based physics labs, we extend results of previous work. Using a survey on group work preferences and video recordings of lab sessions, we find similar patterns of gendered role-taking noted in prior studies. These results are not reducible to differences in students' preferences. We find that an intervention which employed partner agreement forms, with the goal of reducing inequities, had a positive impact on students' engagement with equipment during a first-semester lab course. Our work will inform implementation of more effective interventions in the future and emphasizes challenges faced by instructors who are dedicated to both research-based pedagogical practices and efforts to promote diversity, equity, and inclusion in their classrooms.

physics.ed-ph↗

arXiv2021

Training the trainer: Professional Development for High School Physics Teachers with Low Physics Background

The shortage of highly qualified high school physics teachers is a national problem. The Mitchell Institute Physics Enhancement Program (MIPEP) is a two-week professional development program for in-service high school physics teachers with a limited background in the subject area. MIPEP, which started in 2012, includes intense training in both subject matter and research-based instructional strategies. Content and materials used in the program fulfill state curriculum requirements. The MIPEP curriculum is taught by Texas A&M University faculty from the Department of Physics & Astronomy along with two master high school physics teachers. In this paper we present the design and implementation of MIPEP. We report on assessment of knowledge and confidence of 2014-2018 MIPEP cohorts. We also present the results of the 2020 program that was delivered remotely due to the pandemic. Analysis of these assessments showed that the majority of MIPEP participants increased their physics knowledge and their confidence in that knowledge during both traditional and virtual program deliveries.

physics.ed-ph↗

arXiv2020

Student Responses to Changes in Introductory Physics Learning due to COVID-19 Pandemic

As a result of the spread of COVID-19 during spring 2020, many colleges and universities across the US, and beyond, were compelled to move entirely to remote, online instruction, or shut down. Due to the rapidity of this transition, instructors had to significantly -- if not completely -- change their instructional style on very short notice. Our purpose with this paper is to report on student experiences and reactions to the switch to emergency remote learning at two large, land-grant, research intensive universities. We aimed to explore how students have received and dealt with the shift to remote learning that began in March 2020, specifically in introductory physics and astronomy courses. By providing timely student feedback, we hope to help instructors tune their efforts to build a more effective remote learning environment.

physics.ed-ph↗

arXiv2020

Gendered Performance Differences in Introductory Physics: A Study from a Large Land-Grant University

Studies examining gender differences in introductory physics show a consensus when it comes to a gender gap on conceptual assessments; however, the story is not as clear when it comes to differences in gendered performance on exams. This study examined whether gendered differences exist on midterm and final exams in introductory physics courses and if such differences were correlated with a gender difference in final course grades. The population for this study included more than 10,000 students enrolled in algebra- and calculus-based introductory physics courses between spring 2007 and spring 2019. We found a small but statistically significant difference, with a weak effect size, in final letter grades for only one out of four courses: algebra-based mechanics. By looking at midterm exam grades, statistically significant differences were noted for some exams in three out of four courses, with algebra-based electricity and magnetism being the exception. In all statistically significant cases, the effect size was small or weak, indicating that performance on exams and final letter grades was not strongly dependent on gender. As an added dimension examining gendered differences, we investigated if differences exist when accounting for instructor gender. Additionally, a questionnaire was administered in fall 2019 to more than 1,600 students in both introductory sequences to explore students' perceptions of performance, class contributions, and inclusion. We observed some differences between students' perception of their performance and contribution when grouped by gender, but no difference on perception of inclusion.

physics.ed-ph↗