The purpose of this research is to promote the construction of mathematical proof from argumentation at the primary level. To show this is a viable instructional strategy at the primary level, we use a teaching experiment methodology and a task related to geometric proof in this research study. To model and analyze the collective argumentation…

Numerous difficulties exist in employing psychometrically sound quantitative measures of leadership development that are both generalizable and brief. Here, we highlight our efforts in creating the Ready, Willing, and Able Leader (RWAL) Scale. This instrument of leadership capacity: (a) has been psychometrically validated for use with college…

This research adapted the Life Skills Scale for Sport (LSSS) into Portuguese and provided evidence for its construct validity. Study 1 included four translators and five academics who developed a Portuguese version of the LSSS (P-LSSS). During this study, evidence for the content and substantive aspects of construct validity was provided using an…

The development of proficiency in the practices used by scientists and engineers is considered an important student outcome of laboratory instruction. We developed tasks to assess students' use and development of selected scientific and engineering practices in the general chemistry laboratory using an adapted evidence-centered design approach. In…

The aims of this study were to perform the cross-cultural adaptation of the Borg Rating of Perceived Exertion (RPE) 6-20 Scale to Brazilian Portuguese language and to start testing its validity and reliability. After performing the cross-cultural adaptation of the Scale, concurrent and discriminative validity, and reliability were determined on a…

The Children's New Ecological Paradigms scale was originally developed for children ages 10-12 and was presented as valuable for comparing that age group with older participants. This study uses cognitive interviews and measurement invariance testing to investigate how well the scores maintain the same meaning between these two age groups. The…

Since its development in 2006, the Longitudinal Assessment of Engineering Self-Efficacy (LAESE) V3.0 instrument with six constructs indicated by 31 items has been a popular tool used in engineering education research in the United States. However, there has been lack of validity and reliability evidence in the literature beyond its initial…

The New Ecological Paradigm (NEP) scale is used worldwide to predict people's environmental worldviews. However, some researchers criticize its unidimensional structure and limited ability to predict pro-environmental behavior (PEB). The Two Major Environmental Values (2-MEV) scale, which considers environmental attitudes in two…

Establishing a reliable and valid measure of academic integrity that can be used in higher education institutions across the world is a challenging and ambitious task. However, solving this issue will likely have major ramifications for understanding dishonest action. It also enables the development of a standardised measure that can be used to…

Adaptive functioning (AF) has been overlooked in the assessment of intellectual disability within the UK Prison Service, primarily because there are no reliable and valid measures of AF suitable for use with prison populations. This position is incompatible with the obligation of Her Majesty's Prison and Probation Service to provide specialist…

Traditional psychometric guidelines suggest that at least several hundred respondents are needed to obtain accurate parameter estimates under the Rasch model. However, recent research indicates that Rasch equating results in accurate parameter estimates with sample sizes as small as 25. Item parameter drift under the Rasch model has been…

In randomized experiments, inventories with reverse-keyed items are compared with inventories in which all the items are either positively or negatively associated with the underlying concept. The results show that with reverse keying, a control of the potential bias was not sufficient; likewise, the factorial structure, reliability, and validity…

This paper presents the outcomes of an empirical investigation into the validity of Bryan Cunningham's thesis that the effectiveness of teacher mentoring is enhanced by a supportive institutional framework comprising eight 'architectural design features'. It draws upon analyses of data from a mixed methods study of mentoring in the English Further…

Due to globalization trends, engineers are increasingly expected to work effectively across national and cultural boundaries. However, there remains a lack of valid and reliable measures of global engineering competency. To address this gap, the research team has undertaken a large-scale research project to develop a suite of instruments to…

Virtually every sector is affected with the breeze of change and globalization, education sector is not an omission. This study aims to analyze the relationship between distributed leadership and teachers' normative, and continuance commitment to change with meditating role of emotional, intentional, and cognitive readiness to change. Data were…