The purpose of this study is to examine the effect of missing data imputation methods, namely regression imputation (RI), multiple imputation (MI) and k-nearest neighbor (kNN) on differential item functioning (DIF). In this regard, the datasets used in the research were created by deleting some of the data via the missing completely at random…

The COVID-19 pandemic caused severe disruption to education in the UK in 2020, with most of the school teaching moving online and national school examinations being cancelled. This was particularly disruptive for those taking end of school examinations in preparation for higher education. Biological science courses require students to absorb a lot…

The Cambridge Digital Mocks Service offers on-screen assessments created by transferring paper-based (PB) exams into a digital test platform. This feasibility project considered the validity of extending the Digital Mocks Service to maths and science qualifications, thinking about (1) the outcomes that are likely when maths and science items are…

The development and evaluation of valid assessments of scientific reasoning are an integral part of research in science education. In the present study, we used the linear logistic test model (LLTM) to analyze how item features related to text complexity and the presence of visual representations influence the overall item difficulty of an…

This study explores the relationship between engagement with an online, free-to-use question-generation application (PeerWise) and student achievement. Using PeerWise, students can create and answer multiple-choice questions and can provide feedback to the question authors on question quality. This provides further scope for students to engage in…

This article outlines an exploratory study that investigated students' perceptions of the benefits and disadvantages of lecture recordings delivered as part of an introductory chemistry program in the UK during the COVID-19 lockdown in Spring 2020. Three features of these lecture recordings are considered: 1) the production of a series of…

As part of continued efforts to ensure inclusivity in assessment, OCR has developed a set of accessibility principles for question design in GCSE Science examinations, which has been applied since 2018. The principles are intended to help ensure that all students can demonstrate their knowledge, understanding and skills to the best of their…

Students' socioeconomic status (SES), school climate, and students' attitudes stand out as important factors that determine academic achievement. The current study investigated the relationship among SES, attitude toward science, school climate, and academic achievement comparatively in terms of countries. Trends in International Mathematics and…

In the traditional approach to constructing a GCSE or A Level examination paper, a single person writes the whole paper. In some other contexts, tests are constructed by selecting questions from a bank of questions. In this research, we asked experts to evaluate the quality of Physics exam papers constructed in the traditional way, constructed by…

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…

Rapid response behaviour, a type of test disengagement, cannot be interpreted as a true indicator of the targeted constructs and may compromise score accuracy as well as score validity for interpretation. Rapid responding may be due to multiple factors for diverse populations. In this study, using Programme for International Student Assessment…

The mass shift to Open-Book, Open-Web (OBOW) assessments during the pandemic highlighted new opportunities in Higher Education for developing accessible, authentic assessments that can reduce administrative load. Despite a plethora of research emerging on the effectiveness of OBOW assessments within disciplines, few currently evaluate their…

The authors have experienced increasing demand from undergraduate students, particularly those in the early years of study, to be able to access more "test-style" material to help with revision, as well as guidance on how to approach their university assessments. With increased use of multiple-choice questions (MCQs) in university…

The spotter test is an assessment that has been used widely to test practical knowledge of anatomy. Traditional spotter formats often focus solely on knowledge recall, in addition to being an onerous marking burden on staff where consistency in marking free text responses can be questioned. First-year optometry students at the University of…

This article provides an overview of the main findings for the countries of the UK from the Organisation for Economic Co-operation and Development (OECD) Programme for International Student Assessment (PISA) in 2015, where science was the major focus. The nature of the tests, the key findings and how they might be interpreted are discussed--in…