The aim of this study was to adapt the Positive and Negative Affect Scale for Children (PANAS-C) developed by Laurent et al. into Turkish and to examine its validity and reliability on high school adolescents. The data of the study were analyzed with four different study groups. The first study group consisted of 414 high school adolescents, 262…

Objective: The present study was conducted to test the validity and reliability of the Academic Life Satisfaction Scale (ALSS) on adolescents. Design: Two different samples were recruited for data collection. The first sample consisted of a total of 423 high school students, 272 (64.3%) females and 151 (35.7%) males, with a mean age of 15.97 (SD =…

This study introduced the Scale of Adolescents' Perceptions Toward Adults (SAPTA), which was developed in Turkey. The validity and reliability study for SAPTA was performed using the data obtained from 1008 high school students whose ages ranged between 14 and 18. The internal consistency coefficient calculated with the Explanatory Factor Analysis…

The "proving process" was considered as the stages that should be exist in a proof and in this study, it was aimed to investigate the mathematical proving processes and opinions about proof of gifted students. Case study, one of the qualitative research methods, was used in the study. The research was carried out with the students…

The aim of this research is to adapt the 24-item "Learner Autonomy Scale" developed by Sereti and Giossos (2018) in higher education samples into Turkish by examining the psychometric properties of high school and secondary school samples, and to determine whether these groups are equivalent in terms of measurement invariance. The scale…

The concept of grit has become a widely investigated topic in mental health and education in recent years. This study aims to develop a tool for measuring grit in high school and university students and to examine the measurement invariance of the developed scale on two different groups. A total of 586 high school students (411 female, 70%; 175…

This study aimed to develop an assessment tool for determining the geographic inquiry process skills of 9th-12th grade high school students. A 36-item questionnaire was prepared to achieve this goal. The questionnaire was administered to 599 10th and 11th-grade students from five different school types in Ankara province of Turkey in 2019. In…

This study aims to develop a scale to determine the Teachers' Management of Undesirable Student Behaviours. The study to determine the construct validity and internal consistency was carried out in the general screening model. The study groups consist of 822 students (458 for AFA; 364 for DFA) studying at various high schools in the centre and…

The aim of this study was to adapt the Career-related Teacher Support Scale to Turkish and to carry out validity and reliability studies. Data were collected from a total of 752 high school students studying in Turkey. Confirmatory factor analysis showed that the scale had an excellent fit. Students' perceptions of career-related teacher support…

The importance of the climate of a school has been shown to be correlated to several key factors in education including youth development, academic achievement, and teacher retention. Lee et al. (2017) developed a dual scale which measures both school climate and school identity simultaneously (SCASIM-St). The purpose of this study is to both…

The present research aims to develop a valid and reliable instrument to measure teachers' observation skills. The research was conducted during the 2023-2024 academic year with 651 teachers. Data were collected through online survey methods. Expert opinion was consulted for the content and face validity of the scale in the research. Exploratory…

This research aimed to develop "Critical Thinking Skill Test for High School Students" to measure critical thinking (CT) skills of high school students. For the CT test prepared based on the sub-skills of inference, evaluating arguments, deduction, recognizing assumptions and interpretation which are deemed to represent CT (Watson and…

Test development is a complicated process that demands examining various factors, one of them being writing items of varying difficulty. It is important to use items of a different range of difficulty to ensure that the test results accurately indicate the test-taker's abilities. Therefore, the factors affecting item difficulty should be defined,…

The aim of the current study is to conduct the validity and reliability studies of the Academic Inertia Scale for Adolescents (AAIS). Inertia is that occurs from not adapting to the current situation, lack of motivation, insufficient self-control and lack of socializing. It has been stated that living in inertia is a result of the individual's…

This study sought to develop a valid and reliable measurement tool that measures the perceptions of behavioral dispositions in determining the high school preferences of 8th grade students. The study population consisted of 26,906 eight graders in public and private secondary schools located in the city centres of Aydin and Denizli, Turkey. The…