Profile analysis is one of the main tools for studying whether differential item functioning can be related to specific features of test items. While relevant, profile analysis in its current form has two restrictions that limit its usefulness in practice: It assumes that all test items have equal discrimination parameters, and it does not test…

Computational thinking (CT) is a fundamental ability for learners in today's society. Although CT assessments and interventions have been studied widely, little is known about CT predictions. This study predicted students' CT achievement in the ICILS 2018 using five machine learning models. These models were trained on the data from five European…

A conceptual confusion of "theory" exists in South African Open Distance and e-Learning (ODeL) research in which the concept is used with borderline, related, contrary, invented, or illegitimate concepts such as a model, approach, construct, hypothesis, theoretical framework, or conceptual framework. As a result, some researchers choose…

Conscientiousness and interest are well-known predictors of academic effort and achievement. As hypothesized by the Conscientiousness × Interest Compensation (CONIC) model, conscientiousness and interest can (partly) compensate for each other, leading to (comparatively) high effort if either conscientiousness or interest is high. The present…

Background: Africa is increasingly becoming an important region for health research, mainly due to its heavy burden of disease, socioeconomic challenges, and inadequate health facilities. Regulatory capacities, in terms of ethical review processes, are also generally weak. The ethical assessment of social and behavioral research is relatively…

The teacher assessment that is the subject of this paper is an essentially informal activity. The teacher assesses the student by posing questions, observing activities, and evaluating work in a planned or ad hoc way. The information obtained may be partial or fragmented, but repeating such assessments over time will allow the buildup of a solid…