The purpose of the study was to develop the Teachers' Mental Toughness Questionnaire (TMTQ). The questionnaire was developed in six stages: item generation, content validity, exploratory factor analysis, reliability tests, convergent validity tests, and discriminant validity. The factor analysis indicates that it measures six factors: team,…

Despite the evolution of the grit conceptualization over the years, the psychometric validity of scales and construct structure remain unclear. Consequently, this study aims to provide new evidence that broadens the current understanding of the grit's dimensional nature in the Spanish population by examining the psychometric properties of the…

This study describes the development of the science, technology, engineering, and mathematics (STEM) Scale, intended to assess parental attitudes toward school programs designed to deliver STEM, and evaluates its psychometric properties. The study group included 400 parents of students (138 males and 262 females) enrolled in STEM programs…

This study adapts the "Scales for Identifying Gifted Students (SIGS-2)" into Turkish for use from preschool onward, specifically during the candidate nomination stage. Conducted with 974 parents (675 mothers, 299 fathers) of children aged 5-10, it employs Confirmatory Factor Analysis (CFA) to evaluate the scale's structure and…

Effective collaboration depends on the mutual regulation of group members, positioning it as a fundamental aspect of socially shared regulation of learning (SSRL). In recent years, SSRL has garnered increasing research attention. However, there remains a scarcity of psychometrically sound measures for assessing this construct. Without reliable…

Background: Behavioural problems in individuals with intellectual disabilities have a negative impact on them. Limited assessment measures exist in Spain. This study aimed to validate the Behavior Problems Inventory--Short Form (BPI-S) in the Spanish population by examining its psychometric properties and factorial structures. Method: This study…

Problem Statement: Among individuals aged 12 years or older, 14.3% (40.0 million) reporting the use of an illicit drug in the previous year. Given the prevalence of drug abuse, it is increasingly important to determine effective screening practices, treatment procedures, and best practices among various subpopulations to identify drug use-related…

Stress is a complex construct that is related to resilience and general health starting in childhood. Despite its importance for student health and well-being, there are few measures of stress designed for school-based applications. In this study, we developed and initially validated a Stress Indicators Scale using five samples of teachers,…

The Attitudes to Inclusion Scale (AIS) and the Intention to Teach in Inclusive Classroom Scale (ITICS) are instruments widely used internationally for researching teachers' attitudes and intentions towards inclusive education (IE). This study presents information on psychometric analysis of the AIS and ITICS as well as their functioning in the…

The study took a Rasch measurement theory approach to validating the 10-item Digital Literacy Scale (DLS) using the unidimensional rating scale model (RSM). To that end, the study used the data from a sample of online Turkish university students. The study began the Rasch analysis with all 10 items in the scale and, to improve in the local…

This study aimed to evaluate the psychometric properties and gather evidence supporting the validity of scores from a traditional Chinese version of the Claremont Purpose Scale (TC-CPS) among Taiwanese adolescents. The TC-CPS, measuring meaningfulness, goal directedness, and beyond-the-self orientation, was administered to 233 high school and 445…

The School Attitude Assessment Survey-Revised (SAAS-R) is a popular scale for assessing attitudinal and motivational aspects of students' academic achievement. However, evidence on key psychometric properties of the SAAS-R such as reliability remains limited. We conducted a reliability generalization study of the SAAS-R using meta-analytic…

Purpose: The Stuttering Severity Instrument--Fourth Edition (SSI-4) is unavailable in Arabic language. The purpose of the current research is to translate the SSI-4 (Riley, 2009) into Arabic and to discuss its validity, as well as its intrajudge and interjudge reliability. Method: Archived videos of 28 school-aged children who stutter ranged in…

Background: Mental health (MH) problems are more common in people with intellectual disabilities (ID), yet under-diagnosis persists, which may be partly due to a lack of appropriate assessment tools. This study presents a systematic review of instruments used to assess MH problems in Spanish-speaking adults with ID. Method: Following PRISMA…

Technological mediation has gained relevance in teaching mathematics. Its usefulness and impact depend, to a great extent, on how students approach the learning of the discipline. Two independent instrumental studies were conducted to analyze the psychometric properties of the Spanish version of the Mathematics and Technology Attitudes Scale…