An official website of the United States government
In physics education research, instructors and researchers often use research-based assessments (RBAs) to assess students’ skills and knowledge. In this paper, we support the development of a mechanics cognitive diagnostic to test and implement effective and equitable pedagogies for physics instruction. Adaptive assessments using cognitive diagnostic models provide significant advantages over fixed-length RBAs commonly used in physics education research. As part of a broader project to develop a cognitive diagnostic assessment for introductory mechanics within an evidence-centered design framework, we identified and tested the student models of four skills that cross content areas in introductory physics: apply vectors, conceptual relationships, algebra, and visualizations. We developed the student models in three steps. First, we based the model on learning objectives from instructors. Second, we coded the items on RBAs using the student models. Finally, we then tested and refined this coding using a common cognitive diagnostic model, the deterministic inputs, noisy “and” gate model. The data included 19 889 students who completed either the Force Concept Inventory, Force and Motion Conceptual Evaluation, or Energy and Momentum Conceptual Survey on the LASSO platform. The results indicated a good to adequate fit for the student models with high accuracies for classifying students with many of the skills. The items from these three RBAs do not cover all of the skills in enough detail, however, they will form a useful initial item bank for the development of the mechanics cognitive diagnostic.
more »
« less
Mechanics Cognitive Diagnostic: Mathematics skills tested in introductory physics courses
Physics instructors and education researchers use research-based assessments (RBAs) to evaluate students' preparation for physics courses. This preparation can cover a wide range of constructs including mathematics and physics content. Using separate mathematics and physics RBAs consumes course time. We are developing a new RBA for introductory mechanics as an online test using both computerized adaptive testing and cognitive diagnostic models. This design allows the adaptive RBA to assess mathematics and physics content knowledge within a single assessment. In this article, we used an evidence-centered design framework to inform the extent to which our models of skills students develop in physics courses fit the data from three mathematics RBAs. Our dataset came from the LASSO platform and includes 3,491 responses from the Calculus Concept Assessment, Calculus Concept Inventory, and Pre-calculus Concept Assessment. Our model included five skills: apply vectors, conceptual relationships, algebra, visualizations, and calculus. The "deterministic inputs, noisy 'and' gate'' (DINA) analyses demonstrated a good fit for the five skills. The classification accuracies for the skills were satisfactory. Including items from the three mathematics RBAs in the item bank for the adaptive RBA will provide a flexible assessment of these skills across mathematics and physics content areas that can adapt to instructors' needs.
more »
« less
- Award ID(s):
- 2141847
- PAR ID:
- 10544476
- Publisher / Repository:
- American Association of Physics Teachers
- Date Published:
- Page Range / eLocation ID:
- 243 to 249
- Format(s):
- Medium: X
- Location:
- Boston, MA
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
null (Ed.)Research-based assessments (RBAs; e.g., the Force Concept Inventory) that measure student content knowledge, attitudes, or identities have played a major role in transforming physics teaching practices. RBAs offer instructors a standardized method for empirically investigating the efficacy of their instructional practices and documenting the impacts of course transformations. Unlike course exams, the common usage of standardized RBAs across institutions uniquely supports instructors to compare their student outcomes over time or against multi-institutional data sets. While the number of RBAs and RBA-using instructors has increased over the last three decades, barriers to administering RBAs keep many physics instructors from using them.1,2 To mitigate these barriers, we have created full-service online RBA platforms (i.e., the Learning About STEM Student Outcomes [LASSO],3 Colorado Learning Attitudes About Science Survey for Experimental Physics [E-CLASS],4 and Physics Lab Inventory of Critical thinking [PLIC]5 platforms) that host, administer, score, and analyze RBAs. These web-based platforms can make it easier for instructors to use RBAs, especially as many courses have been forced to transition to online instruction. We hope that this editorial can serve as a guide for instructors considering administering RBAs online. In what follows, we examine common barriers to using RBAs, how online administration can remove those barriers, and the research into online administration of RBAs. In the supplementary material,6 we also include a practical how-to for administering RBAs online and sample student email wording.more » « less
-
null (Ed.)Research-based assessments (RBAs; e.g., the Force Concept Inventory) that measure student content knowledge, attitudes, or identities have played a major role in transforming physics teaching practices. RBAs offer instructors a standardized method for empirically investigating the efficacy of their instructional practices and documenting the impacts of course transformations. Unlike course exams, the common usage of standardized RBAs across institutions uniquely supports instructors to compare their student outcomes over time or against multi-institutional data sets. While the number of RBAs and RBA-using instructors has increased over the last three decades, barriers to administering RBAs keep many physics instructors from using them.1,2 To mitigate these barriers, we have created full-service online RBA platforms (i.e., the Learning About STEM Student Outcomes [LASSO],3 Colorado Learning Attitudes About Science Survey for Experimental Physics [E-CLASS],4 and Physics Lab Inventory of Critical thinking [PLIC]5 platforms) that host, administer, score, and analyze RBAs. These web-based platforms can make it easier for instructors to use RBAs, especially as many courses have been forced to transition to online instruction. We hope that this editorial can serve as a guide for instructors considering administering RBAs online. In what follows, we examine common barriers to using RBAs, how online administration can remove those barriers, and the research into online administration of RBAs. In the supplementary material,6 we also include a practical how-to for administering RBAs online and sample student email wording.more » « less
-
Increased retention of students in STEM disciplines is one vital part to increase the number of students who are able to succeed in STEM fields. Our efforts focus on the first year Calculus and Physics curriculum, and we explicitly bring these two closely connected areas together. The program has two parts. First is the identification of students who can benefit the most from a coordinated experience. This is done by identifying students strength in mathematics as well as physics prior to entry into the courses, and our focus is on students whose have a relative strength in physics and a relative weakness in mathematics skills. The second step is to bring the two courses together into a vibrant whole. This is done by making use of fundamental physics models, and our students are challenged to increase their analytic abilities through the development of physics based models and an exploration and analysis of the resulting models.more » « less
-
Abstract Despite rapid growth of quantum information science (QIS) workforce development initiatives, perceived lack of agreement among faculty on core content has made prior research-based curriculum and assessment development initiatives difficult to scale. To identify areas of consensus on content coverage, we report findings from a survey of N=63 instructors teaching introductory QIS courses at US institutions of higher learning. We identify a subset of content items common across a large fraction (≥ 80%) of introductory QIS courses that are potentially amenable to research-based curriculum development, with an emphasis on foundational skills in mathematics, physics, and engineering. As a further guide for curriculum development, we also examine differences in content coverage by level (undergraduate/graduate) and discipline. Finally, we briefly discuss the implications of our findings for the development of a research-based QIS assessment at the postsecondary level.more » « less
- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Conference Paper:
- https://doi.org/10.1119/perc.2024.pr.Le
