In this study, it was aimed to examine the relationship between teachers' organizational commitment and career anxiety. A cross-sectional correlational design belonging to the relational survey model was used. A simple random sampling method was utilized to determine the sample. The sample consisted of 384 teachers. Personal Information Form,…

The purpose of this study is to examine the effect of missing data imputation methods, namely regression imputation (RI), multiple imputation (MI) and k-nearest neighbor (kNN) on differential item functioning (DIF). In this regard, the datasets used in the research were created by deleting some of the data via the missing completely at random…

The purpose of this research is to examine the relationship among sixth-, seventh-, and eighth-grade gifted students' spatial reasoning skills, conceptual understanding of basic astronomy topics, and science achievement. To achieve this, the study was designed as a multi-factor predictive correlational study. The research sample consists of 642…

In this paper, it is aimed to evaluate different aspects of students' response time to items in the mathematics test and their test effort as an indicator of test motivation with the help of some variables at the item and student levels. The data consists of 4th-grade Singapore and Turkish students participating in the TIMSS 2019. Response time…

The aim of this research is to evaluate the effect of online education on eye health in COVID-19 pandemic and to present a new scale on this subject. For this purpose, 402 students (257 females, 145 males) with a mean age of 20.26 from different faculties of Pamukkale university were asked about eye health by e-mail between 8-13 July 2020. Also,…

The purpose of the study is to analyze the affective traits that affect mathematics achievement through Structural Equation Modeling (SEM) as a traditional regression model and Multivariate Adaptive Regression Splines (MARS), as one of the data mining methods. Structural Equation Modeling, one of the regression-based methods, is quite popular for…

It is noted in the light of several studies associated with the reading-comprehension skills that fluent word reading, connectives knowledge and fluent text reading are closely related to the comprehension skill. Hence it seems possible to create a model over these concepts and their interrelationships. Within the scope of this research two…

Covariates have been used in mixture IRT models to help explain why examinees are classed into different latent classes. Previous research has considered manifest variables as covariates in a mixture Rasch analysis for prediction of group membership. Latent covariates, however, are more likely to have higher correlations with the latent class…

The main purpose of this study is to investigate the relationships between the opinions of secondary school teachers about effective teacher characteristics and their reasons for choosing the teaching profession. In this context, the study first intends to develop a measurement tool to identify effective teacher characteristics. The study is of a…

The aim of this study was to conduct a systematic review research concentrating on studies regarding "Mathematics anxiety." 59 papers were reanalyzed in order to answer the questions derived from the main aim in terms of the rules of systematic review method. These studies were reviewed and analyzed by taking account of their aims,…