Metabolomics, the large-scale study of metabolites in biological fluids and tissues, offers the ability to observe metabolic changes in a broad context. Traditionally, nutritional metabolism education has focused on theory using textbooks. The objective of this study was to assess the effectiveness of involving students in a feeding research study…

We have successfully developed a one-semester general chemistry course that meets the primary learning goals of the traditional two-semester sequence. It is appropriate for physical, life, and earth science majors. Since implementation, 88% of students who start general chemistry complete it, an increase from 72% in our prior traditional…

Summative year end assessments are a major component of student assessment at the Department of Chemical Engineering, Imperial College London. More than 600 students participate in over 40 different exams during the summer term. At the end of the spring term, the college moved to fully remote operation due to COVID-19, leaving the academic…

Two-stage exams, in which students first complete an exam individually and then again as a group, have been used successfully in many disciplines to promote collaboration, learning, and retention of learning. However, it is unknown what the impacts of two-stage exams would be with chemical engineering students. In this study, two-stage exams were…

Beginning in September 2020, students will have the option to retake one or more sections of the ACT® test (referred to as section retesting, modular testing, or single-subject retesting), instead of needing to take the entire battery again. Section retests will only be available to students who have previously completed the full battery and only…

Many studies have examined the structure and properties of the Force Concept Inventory (FCI); however, far less research has investigated the Force and Motion Conceptual Evaluation (FMCE). This study applied Multidimensional Item Response Theory (MIRT) to a sample of N = 4528 FMCE post-test responses. Exploratory factor analysis showed that 5, 9,…

The Force Concept Inventory is a multiple-choice test and is one of the most popular and most analyzed concept inventories. It is used to investigate student understanding of Newtonian mechanics. A structured approach to data analysis can transform it in a "diagnostic" instrument that can validate inferences about student thinking. In…

This study determined the psychometric properties of the examination items in 2011 Basic Education Certificate Examination for Basic Science. The design adopted was survey research design. The instrument for data collection was the 2011 Delta State Basic Education Certificate Examination (BECE) in Basic Science Multiple Choice Test Items. The IRT…

The Force Concept Inventory (FCI) is widely used to investigate the effect of education level on conceptual understanding of Newtonian mechanics but has only recently been scrutinized for gender effects and retention. This study examines both the gender gap in first year physics undergraduates compared to the gap for nonphysicists and the FCI…

Scientific literacy is the ability which must be owned by the students to analyze and apply the concept of science in solving daily life problem. This research aims to know the correlation between scientific literacy and science learning achievement at State Junior High Schools. This research used a quantitative approach with correlational type.…

Providing diagnostic feedback about growth is crucial to formative decisions such as targeted remedial instructions or interventions. This article proposed a longitudinal higher-order diagnostic classification modeling approach for measuring growth. The new modeling approach is able to provide quantitative values of overall and individual growth…

The "Next Generation Science Standards" calls for new assessments that measure students' integrated three-dimensional science learning. The National Research Council has suggested that these assessments utilize a combination of item formats including constructed-response and multiple-choice. In this study, students were randomly assigned…

Team teaching is an innovative method to engage the large group and make lectures more interesting. The aim of the study is to evaluate the impact of team teaching in first year biochemistry lecture classes. After obtaining ethical clearance, 150 first year medical undergraduate students participated in the study on a voluntary basis. Topic…

There has been increasing interest in exploring heterogeneous treatment effects using machine learning (ML) methods such as causal forests, Bayesian additive regression trees, and targeted maximum likelihood estimation. However, there is little work on applying these methods to estimate treatment effects in latent classes defined by…

Background: Inquiry-based learning is widely applied in science education; however, so far, the outcomes of learning process have been systematically assessed mainly at the secondary school level. For primary school students, there is no valid instrument for assessing the outcomes of their science inquiry. The aim of the current study was to…