The redox reaction is a core concept of upper-secondary school chemistry curriculum. Accurate diagnosis of students' conceptual understanding of the redox reaction from a cognitive structure perspective is critical for enhancing their understanding of chemical concepts. This study utilized Bayesian networks to investigate the cognitive structures…

This study considers the importance of contextual effects on the quality of assessments on item bias and differential item functioning (DIF) in measurement. Often, in educational studies, students are clustered in teachers or schools, and the clusters could impact psychometric issues yet are largely ignored by traditional item analyses. A…

This report documents the development and validation of the National Education Longitudinal Study of 1988 (NELS:88) cognitive test battery. The cognitive test battery assesses growth between grades 8 and 12 in the content areas of reading comprehension, mathematics, science, and history/citizenship/geography. The battery was part of the NELS:88…