This study aims to compare the G and Phi coefficients as estimated by D studies for a measurement tool with the G and Phi coefficients obtained from real cases in which items of differing difficulty levels were added and also to determine the conditions under which the D studies estimated reliability coefficients closer to reality. The study group…

Academic self-control refers to the individual's self-control behaviors in the academic field. The study reported in this article aims to develop a valid and reliable instrument for evaluating the academic self-control behaviors of secondary school students between the ages of 11-14. The study sample consists of 1087 students (female n = 545; male…

Purpose: To assess students' problem-solving skills, this study aims to investigate the consistency between self- and peer-ratings in consideration of the teachers' ratings in the process. Method: This study was a descriptive study which examines the mathematical problem-solving skills with the MFRM model concerning self-, peer- and teachers'…

Nowadays, rapid changes in science and technology increase the demand of qualified individuals who have signs of disciplined mind which is hightlighted in Howard Gardner's (2006) five minds as one type of mind. So, it is important to measure whether individuals have disciplined mind or not. Based on this idea, it is aimed to evaluate the…

The aim of this research is to determine whether students' test performance and approaches to test questions change based on the type of mathematics questions (visual or verbal) administered to them. This research is based on a mixed-design model. The quantitative data are gathered from 297 seventh grade students, attending seven different middle…

This study aimed to examine connections between modes of thinking and approaches to learning. Participants were 1490 students attending to 9 high schools located in Ankara. The Style of Learning and Thinking-Youth Form and Revised Version of Learning Process Questionnaire were administered to these students. The connections between modes of…

People form organizations by getting together in order to realize the goals that they might not manage to realize alone. Organizations differ from one another by various distinctive characteristics. However, their success is related to the level of goal fulfillment. People working more effectively and efficiently within the organization may create…