This dissertation comprises three complementary studies that aim to advance the understanding and practice of Individualized Education Programs (IEP) and Present Levels of Academic Achievement and Functional Performance (PLAAFP) development in special education. In the first study, we systematically reviewed empirical research measuring IEP…

This study provides a thorough psychometric evaluation of construct and criterion validity and measurement invariance of the promising Florence Bullying-Victimization Scales (FBVS). A special focus was devoted to the concurrent criterion validity of the victimization scale with regard to well-being and social self-efficacy. Exploratory and…

An association between spatial ability, particularly visualisation, and science, technology, engineering, and mathematics (STEM) education has been repeatedly demonstrated over the past four decades. Understanding this relationship is of critical importance as substantial evidence illustrates the malleability of spatial ability and that the…

Conducting a fair test is important for educational research. Unfair assessments can lead to gender disparities in academic achievement, ultimately resulting in disparities in opportunities, wages, and career choice. Differential Item Function [DIF] analysis is presented to provide evidence of whether the test is truly fair, where it does not harm…

Researchers and practitioners in the field of second language acquisition have come to realize the importance of non-cognitive skills such as self-efficacy and self-regulation in students' learning of a second language. However, there has been limited systematic research on such measures in the second language context and the validity and…

This study validated measures for elementary preservice teachers' technological, pedagogical, and content knowledge (TPACK) for elementary mathematics and evaluated the extent to which technology knowledge, pedagogy knowledge, and content knowledge were related to the formation of TPACK. The study was guided by the TPACK framework and adopted a…

To revise the Parental Autonomy Support Scale (PASS) and to validate its psychometric properties in Chinese college students, this study recruited 738 Chinese college students, with 72 of them retested four weeks later. The Parental Psychological Control Scale (PPCS) and the Self-Esteem Scale (RSES) were used to evaluate the validity of the PASS.…

The Kessler Psychological Distress Scale (K-10) is widely utilized to assess non-specific psychological distress. However, when applied to COVID-19 pandemic experiences, its psychometric properties have not been examined. This study investigated the factor structure, reliability, and latent profile of K-10 using data from 3032 Filipino teachers…

Introduction: Given the global concern for attracting more and better candidates to teaching careers, we must have instruments to help us identify these potential candidates. In Chile, there needs to be more evidence of the motivational and perceptual factors that influence the choice of studies in Education. The aim is to study the psychometric…

Purpose: Anomia, or word-finding difficulty, is a prevalent and persistent feature of aphasia, a neurogenic language disorder affecting millions of people in the United States. Anomia assessments are essential for measuring performance and monitoring outcomes in clinical settings. This study aims to evaluate the reliability of response time (RT)…

Previous research on children's knowledge about the mind has primarily focused on their comprehension of false beliefs, leaving the conceptualization of thoughts and thinking less explored. To address this gap, we developed a new assessment tool, the interview about the mind (IaM), to assess children's understanding of the mind. Two studies…

This study aimed to develop a comprehensive tool to assess underachievement in gifted students, incorporating input from parents, teachers, and students themselves. A total of 285 participants, including 95 gifted students, their parents, and teachers, were involved in the study. The results have revealed a four-factor structure for the Gifted…

Introduction/Background: In 2016, the Adolescent Motor Competence Questionnaire (AMCQ) was developed in Australia. The AMCQ was developed to assess perceived motor competence in adolescents between the ages of 12 and 18 years. The 26 items represent four factors: participation in physical activity and sports, activities of daily living, public…

Irrational beliefs (IB) are irrational thinking patterns that limit the interpretation of situations and generate difficulties in daily life. Although there are several instruments to evaluate irrational beliefs, attention to their evaluation in adolescents has been insufficient, and possible gender and cultural differences have been overlooked.…

Grit, defined as perseverance and passion for long-term goals, has garnered attention in educational research for its potential to predict academic achievement and well-being. Despite this, its psychometric properties and applicability across diverse populations remain underexplored. This study aims to validate the Grit-O scale and explore its…