Currently there are many introductory textbooks on educational measurement and
psychometrics as well as R. However, there is no single book that covers important topics in …

The R package equate contains functions for observed-score linking and equating under
single-group, equivalent-groups, and nonequivalent-groups with anchor test (s) designs …

Examinees who attempt the same test multiple times are often referred to as “repeaters.”
Previous studies suggested that repeaters should be excluded from the total sample before …

This study presents a comprehensive conceptual framework for equating in educational
assessment, aimed at enhancing the accuracy, validity, and fairness of equating outcomes …

Aim Evidence indicates most people were resilient to the impact of the COVID-19 pandemic
on mental health. However, evidence also suggests the pandemic effect on mental health …

In the research reported here, we propose a new method for scale alignment and test
scoring in the context of supporting students with disabilities. In educational assessment …

Equating and scaling in the context of small sample exams, such as credentialing exams for
highly specialized professions, has received increased attention in recent research …

Language programs need multiple test forms for secure administrations and effective
placement decisions, but can they have confidence that scores on alternate test forms have …

Nonequivalent groups with anchor test (NEAT) design is typically preferred in test score
equating, but there are tests which do not administer an anchor test. If the groups are …

This study aims to determine the accuracy of the equating method that uses a circle equation
approach in terms of its circular arc (Simplified Circle Arc). This research uses 2015 National …