ERIC Number: EJ1154197
Record Type: Journal
Publication Date: 2017
Abstractor: As Provided
Improvement or Selection? A Longitudinal Analysis of Students' Views about Experimental Physics in Their Lab Courses
Wilcox, Bethany R.; Lewandowski, H. J.
Physical Review Physics Education Research, v13 n2 p023101-1-023101-5 Jul-Dec 2017
Laboratory courses represent a unique and potentially important component of the undergraduate physics curriculum, which can be designed to allow students to authentically engage with the process of experimental physics. Among other possible benefits, participation in these courses throughout the undergraduate physics curriculum presents an opportunity to develop students' understanding of the nature and importance of experimental physics within the discipline as a whole. Here, we present and compare both a longitudinal and pseudolongitudinal analysis of students' responses to a research-based assessment targeting students' views about experimental physics--the Colorado Learning Attitudes about Science Survey for Experimental Physics (E-CLASS)--across multiple, required lab courses at a single institution. We find that, while pseudolongitudinal averages showed increases in students' E-CLASS scores in each consecutive course, analysis of longitudinal data indicates that this increase was not driven by a cumulative impact of laboratory instruction. Rather, the increase was driven by a selection effect in which students who persisted into higher-level lab courses already had more expertlike beliefs, attitudes, and expectations than their peers when they started the lower-level courses.
Descriptors: Student Attitudes, Physics, Science Instruction, Longitudinal Studies, Science Laboratories, Undergraduate Students, Scores, Student Surveys, Majors (Students), Attitude Measures, Statistical Analysis
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Sponsor: National Science Foundation (NSF)
Authoring Institution: N/A
Identifiers - Location: Colorado
Grant or Contract Numbers: DUE1432204; PHY1734006