To illuminate individual differences in the development of attention-deficit hyperactivity disorder (ADHD) symptoms in the general population, psychometric measures are needed that can capture general population-level symptom variation reliably, validly, and comparably from childhood through to the transition to adulthood. The ADHD subscale of the…

Reviews of social comparison processes in school contexts have concluded that individual differences in propensity to compare with others are likely to be important in the classroom, but that there is a paucity of evidence testing this key proposition. To address this gap, we developed and validated a new measure of propensity to engage in…

The current study examined the psychometric properties and correlates of three measures assessing individual differences in mattering among people from Palestine assessed in January, 2024. This study uniquely considers mattering as a resource and feelings of not mattering as a risk factor among people experiencing traumatizing life circumstances.…

White and Remington (2019) found that autistic people may have increased anthropomorphic tendencies to ascribe human-like attributes to non-human agents. However, it was unclear from their study whether this relationship holds after accounting for socio-demographic variables known to be associated with anthropomorphism. The psychometric properties…

Creating an inclusive experience for students in Higher Education is important for their engagement, belonging, and attainment. There are multiple ways of approaching inclusive teaching and there are specific considerations to be addressed when considering a Psychology curriculum. Although pedagogical resources discuss the benefits and abstract…

Purpose of the research: it is aimed to examine whether the levels of altruism of Physical Education and sports teachers differ according to some variables. This research consists of a total of 126 teachers, 35 women and 91 men, who work as physical education and sports teachers at primary education secondary grade and secondary schools in Kütahya…

The objective of this study was to adapt the Teaching Engineering Self-Efficacy Scale (TESS) to Turkish through comprehensive validity and reliability assessments and to analyze science teachers' (specializing in science, physics, chemistry, biology) Teaching Engineering Self-Efficacy (TES) beliefs concerning various variables. The study employed…

This study explores the psychometric properties of "Self-Determination Inventory: Student Report" (SDI:SR) in students with intellectual and developmental disabilities (IDD) and without disabilities in China. The paper-and-pencil version of SDI:SR Chinese Translation (SDI:SR Chinese) was used to explore self-determination across students…

First-order theory of mind (ToM) development has shown to conform to a Guttman scale, with desire reasoning developing before belief reasoning. There have been attempts to test for internal consistency and scalability in advanced ToM, but not over a broad age range and only with a limited set of tasks. This 2-year longitudinal study (N = 155;…

Several studies have demonstrated that individual differences in processing speed fully mediate the association between age and intelligence, whereas the association between processing speed and intelligence cannot be explained by age differences. Because measures of processing speed reflect a plethora of cognitive and motivational processes, it…

According to (inter)national policy and curriculum documents, the acquisition of research skills is an important objective of secondary education. However, the conceptualization and hence the operationalization of this concept seems ambiguous. Furthermore, no test exists to assess students' proficiency in (a broad range of) research skills in a…

Spatial visualization--the ability to mentally imagine and manipulate objects--has frequently been measured using the Paper Folding Test (PFT). In this task, participants view diagrams of a paper being folded and a hole being punched. They then identify the resulting punch pattern. Although task instructions promote mentally unfolding the paper,…

Some researchers indicate that the transition to high school deflects adolescent developmental trajectories. Others assert that it provides a new possibility for the promotion of adolescents' socioemotional well-being. One critical view missing in such claims is that individual variabilities interact with environmental influences. We employed the…

Recent research on individual differences in object cognition (OC) focused on determining how objects group together, and what type of processing lies behind the clusters--a single domain-general or multiple domain-specific processes. The expertise hypothesis suggests that all object categories are processed by the same mechanism that is…

We review recent research about the development of creativity in South America focusing on studies of individual differences in creativity and educational and developmental studies of children and adolescents' creativity. Most South American researchers are influenced by mainstream psychometric approaches, although computational and cultural…