Although there has been extensive research on students' understanding of the particulate nature of matter (PNM), there is still a lack of research on contexts that can be used to teach this challenging topic. In a previous design-based research study, the authors developed a teaching-learning sequence (TLS) on the PNM in the context of crystal…

Science education is crucial for fostering knowledge across academic disciplines. Past efforts to enhance science achievement at the elementary level have explored various instructional strategies. Among these, the Understanding by Design (UbD) model has shown notable potential in improving science achievement outcomes compared to traditional…

Group differences in test scores are a key metric in education policy. Response time offers novel opportunities for understanding these differences, especially in low-stakes settings. Here, we describe how observed group differences in test accuracy can be attributed to group differences in latent response speed or group differences in latent…

Artificial intelligence (AI) has gained massive interest with the public release of the conversational AI "ChatGPT," but it also has become a matter of concern for academia as it can easily be misused. We performed a quantitative evaluation of the performance of ChatGPT on a medical physiology university examination. Forty-one answers…

The study investigates secondary students' understanding of "orbital" and "electron cloud" concepts in different quantum contexts (for values of the ?principal quantum number n = 1 and n = 2) on the basis of their verbal and pictorial representations, evaluating also their consistency. Participants, which were 192 12th-grade…

The revised two-factor Study Process Questionnaire and the Approaches and Study Skills Inventory for Students are two instruments commonly used to measure student learning approach. Although they are designed to measure similar constructs, it is unclear whether the metrics they provide differ in terms of their real-world classification of learning…

This paper describes the design and evaluation of the Organic chemistry Representational Competence Assessment (ORCA). Grounded in Kozma and Russell's representational competence framework, the ORCA measures the learner's ability to "interpret," "translate," and "use" six commonly used representations of molecular…

Condensed courses are commonly used across academia as a means for students to catch up or get ahead of their curriculum. Instructors may be hesitant to teach such courses due to concerns about limited knowledge retention and reduced academic rigor. We sought to determine if there are any differences in changes of student attitudes before and…

Scientific reasoning competencies (SRC) are an area of competence emphasized in science education and are considered essential in the world of 21st Century skills. Developing these competencies is important for all levels of education, from primary school to university. However, to accurately measure them, measurement tools with validity and…

This study introduces a Comprehensive Scientific Creativity Assessment (C-SCA) instrument and empirically tests its reliability and validity. While existing instruments to measure scientific creativity generally focus on a single dimension, such as divergent thinking, the C-SCA incorporates scientific knowledge, motivation in scientific creativity…

In departmentalized elementary schools, teachers specialize in one or more core subjects and instruct different groups of students throughout the day. Proponents argue that this model leads to higher quality instruction because teachers can specialize in their strongest subjects and that it better prepares students for middle and high school,…

Plate tectonics is the unifying theory of modern Earth science, but many university students have misconceptions about it that introductory geoscience classes often fail to correct. We developed a 5-to-12-hour-long hands-on active-learning curriculum for an introductory geoscience class for education majors. The curriculum includes: (1) A…

The Energy and Momentum Conceptual Survey (EMCS) is an instrument designed to assess students' understanding of key physics concepts in introductory mechanics. In this study, we applied a combination of classical test theory (CTT), item response theory (IRT), and exploratory factor analysis (EFA) to a dataset of over 10 000 students collected…

One type of active learning technique that instructors can incorporate is the use of various drawing activities. This study investigates the impact of drawing during biology lecture classes on student learning. Undergraduate students in two lecture sections of an introductory cellular and molecular biology course completed worksheets that either…

Assessment developers are increasingly using the developing technology of machine learning in transforming how to assess students in their science learning. I argue that these algorithmic models further embed the structures of inequality that are pervasive in the development of science assessments in how they legitimize certain language practices…