This study was conducted to further research into the impact of student-group item parameter drift (SIPD) --referred to as subpopulation item parameter drift in previous research-- on ability estimates and proficiency classification accuracy when occurring in the discrimination parameter of a 2-PL item response theory (IRT) model. Using Monte…

Spectroscopic methods of molecular structure identification and analysis constitute part of inorganic, organic, analytical, and physical chemistry in both undergraduate and postgraduate chemistry curricula. Despite the importance and complexity of the relevant concepts, it is only recently that studies on spectroscopy have started to appear in the…

The goal of this paper is to present several methods of visualizing student activity and collaboration in problem-based learning (PBL) in ways that can augment understanding of the complexity within PBL classrooms as well as to provide insights into the use of specific visual representations to address research questions in PBL. Grounded in…

This study examined whether our ability to accurately estimate unfamiliar faces' ages declines when they are wearing sunglasses or surgical-style face masks and whether these disguises make it harder to later recognise those faces when undisguised. In theory, both disguises should harm age estimation accuracy and later face recognition as they…

English-speaking adults often recruit a "mental timeline" to represent events from left-to-right (LR), but its developmental origins are debated. Here, we test whether preschoolers prefer ordered linear representations of events and whether they prefer culturally conventional directions. English-speaking adults (n = 85) and 3- to…

There has been little written about the ways in which teachers understand draggable geometric objects in a dynamic geometry environment with respect to variance and invariance--two important mathematical ideas related to the development of spatial perception and geometric reasoning. In this article, we investigated such understanding from two…

An enduring challenge in visual-spatial research has been to identify the factors contributing to individual differences in ability. This research investigated the overall, verbal, and nonverbal visual-spatial ability of 61 (34 boys) three- to five-year-olds (M[subscript age] = 57.3 months; SD = 7.9) and the following factors known to be related…

Many studies in the past decades have focused on low and typical mathematics achievers, yet little is known about children with high mathematics achievement, particularly at a young age. The current study aimed to fill this gap and started from the early work of Krutetskii (1976) as a theoretical lens to study the characteristics of high…

This study aims to demonstrate how interactions between a Visual Analytics (VA) application and students shape an interactive and multimodal reading practice. VA is a technology offering support with analysing vast amounts of data through visualisations. Such information-rich interactive interfaces provide possibilities for students to gain…

Compliance to government-prescribed national 'school-readiness' performance measures, particularly in early numeracy and literacy, readies and governs early years children for primary schools' test-based culture. Performance measures, such as the Early Learning Goals and the Phonics Screening Check, govern and steer early years teachers towards…

It has been suggested that not only domain-specific factors but also working memory (WM) may play a crucial role in mathematical learning included Geometry, but the issue has not been deeply explored. In the present study, we examined the role of domain-specific factors and of verbal versus visuospatial WM on geometric learning of a new…

Objective: The purpose of this rapid review is to appraise the current evidence-base to inform the development of a new assessment and diagnostic pathway for ADHD presentations in a public health paediatric department in Brisbane. We posited that the standardised WISC-V administration in all ADHD presentations regardless of cognitive indication…

Teachers' conceptions of gifted and talented students significantly influence their nomination skills and teaching practices. However, research indicates that these conceptions are often incorrect or inconsistent, even among teachers who have completed coursework in gifted and talented education. This study aimed to explore pre-service teachers'…

Background: Individuals with intellectual disabilities are amongst the groups most vulnerable to sexual crimes. However, their limited cognitive abilities can make it challenging to obtain detailed statements from victims during investigative interviews. This study examined whether practising answering open-ended questions early in the interview…

Starting from the observation that teachers treat boys and girls differently, this study investigated the variety in the magnitude of the difference in teacher-perceived teachability of boys and girls and its determinants. The study responded two research questions: (1) Does the extent of the difference in teacher-perceived teachability of boys…