The majority of students from elementary to tertiary levels have misunderstandings and challenges acquiring various statistical concepts and skills. However, the existing statistics assessment frameworks challenge practice in a classroom setting. The purpose of this research is to develop and validate a statistical thinking assessment tool…

The main aim of this study is to develop a useful, valid, and reliable two-tier proportional reasoning skill test for middle school 7th and 8th-grade students. The research was carried out using the sequential explanatory mixed method. The study group of this research comprised of 391 (n[subscript 7th-grade]=223, n[subscript 8th-grade]=168)…

We report the validity of a test instrument that assesses the arithmetic ability of primary students by (a) describing the theoretical model of arithmetic ability assessment using Wilson's (2004) four building blocks of constructing measures and (b) providing empirical evidence for the validation study. The instrument consists of 21…

The concept of collective efficacy that can be defined as "a belief in their common ability to organize and realize plans to achieve goals" (Bandura, 1997, p. 477) has gained utmost importance in educational contexts. Therefore, there arises an emergent need to develop scales to evaluate teachers' collective efficacy behaviours. To this…

The purpose of this research is to adapt the "Motivation to Read Profile Scale" developed by Malloy et al. (2013) into Turkish. Within the framework of adaptation studies, firstly, the items of the scale were translated into Turkish by the researchers, then ten experts were consulted for the Turkish and English forms of the scale, and…

Understanding motivational beliefs such as expectancy and value that shape students' persistence and decision to pursue a STEM career, obtaining valid and reliable measures for these dimensions, and developing strategies using this data are critically important to ensure students' persistence in the STEM pipeline. Therefore, this study aims to…

In the present study, the Teacher Formative Assessment Literacy Scale (TFALS), developed by Yan and Pastore (2022a), was translated into Turkish to examine the factor structure and psychometric characteristics of the scale in a Turkish sample. Data was collected from 318 teachers, of whom 168 were males and 150 were females, working in different…

This study was carried out to develop a test to assess algorithmic thinking skills. To this end, the twelve steps suggested by Downing (2006) were adopted. Throughout the test development, 24 middle school sixth-grade students and eight experts in different areas took part as needed in the tasks on the project. The test was given to 252 students…

This study was conducted to develop a valid and reliable measurement tool that can identify middle school students' self-regulation skills. Firstly, the literature was utilized in the development of the measurement tool. The form was finalized with the support of the opinions of different experts and a trial application. Then, the form was…

This study aims to develop a 'Teacher Expectation Scale' (TES) to accurately and reliably measure teachers' expectations from their students. The development process of TES has an exploratory mixed method research design. The maximum variety sampling method was used when collecting qualitative data for the study, and the simple random sampling…

This study introduces the Professional Development Evaluation Scale (ProDES), a tool that has been developed to evaluate the impact of professional development as it relates to participants' Learning and Use of New Knowledge and Skills, Organisational Support, Student Learning Outcomes, and reactions. Grounded in Guskey's (2000) framework for…

Observation of different levels and types of organizational problems, such as school principals and teachers suing each other and conflicts between teachers, caused by union bias in schools in Turkey today, is the starting point of this study. This study, therefore, aimed to develop and validate a scale that helps determine union bias in schools.…

This study aimed to examine the measurement invariance of the mathematical affective characteristics model obtained from TIMSS 2015 4th grade Turkey administration according to home resources. For this purpose, firstly, the factor structure of the mathematical affective characteristics questionnaire was examined by explanatory factor analysis and…

Teachers have an important role in the achievement progress of students with dyslexia. Therefore, measuring teachers' knowledge and perception of dyslexia is important. Given that an instrument that measures both teachers' knowledge and perception of dyslexia is not available, this study aims to develop a scale to measure primary school teachers'…

This study aims to develop a scale that will determine the factors causing professional obsolescence in the field of education. In this context, the Professional Obsolescence Scale (POS) has been developed to determine the professional and organizational obsolescence of primary, secondary and high school administrators. In this scale development…