Purpose: This review was designed to provide a systematic overview of prosody in people with a primary diagnosis of dementia (PwD) and evaluate the potential use of prosodic features for diagnosis of dementia. Method: A systematic search of five databases was conducted using Medical Subject Headings and keywords. Studies included in the review…

Assessment reliability can be affected by various types of unforeseen events. In any such circumstances where a concern is raised that the reliability of assessment is lower than usual, our natural inclination is to allow extra leniency in grading to reduce the chances of students missing out on a grade they deserve. This article shows how, by…

Purpose: In grading, one of the most common errors is made in combining two or more different test scores. This study aimed to investigate the agreement of grades calculated by weighting raw scores and standard scores. Research Methods: In this simulation study, data were simulated for midterm and final measurements. Nine conditions [3 (class…

Collective intelligence (CI) is said to manifest in a group's domain general mental ability. It can be measured across a battery of group IQ tests and statistically reduced to a latent factor called the "c-factor." Advocates have found the c-factor predicts group performance better than individual IQ. We test this claim by meta-analyzing…

Conversational memory is subject to a number of biases. For instances, references which were reused during dialogue are remembered better than non-reused references. Two experiments examined whether speakers are aware that they are subject to such biases and whether they use information about reference origin (i.e., information about who said…

Statistics courses are challenging for many psychology students. We designed a 'Painting and Puzzles Exercise Book for Statistics' for first year psychology undergraduates, to repeat and deepen the course content and get prepared for the exam. We describe the development and characteristics of the book and report a longitudinal evaluation study.…

Often students think of ECGs (electrocardiograms) as a diagnostic tool for heart attacks. In this activity, students are able to develop an approach to examine an ECG in order to determine what is known as the mean electrical axis (MEA) of their ventricle. In doing so, they not only learn another use for ECGs, they are able to see a real-world…

Purpose: Ultrasound imaging offers a noninvasive adjunct to clinical swallowing assessment. Published reliability of sophisticated ultrasound systems is promising; however, no data exist for reliability using more affordable, pocket-sized devices. This study explored intrarater, interrater, and test-retest reliability of swallowing measures…

The main aim of achieving with the reliability generalization is to investigate the variability related to the reliability estimates and to try to characterize the sources of this variability. As part of the research, a reliability generalization study was carried out on the basis of Beck Depression Inventory-II to investigate potential factors…

An interval estimation procedure is discussed that can be used to evaluate the probability of a particular response for a binary or binary scored item at a pre-specified point along an underlying latent continuum. The item is assumed to: (a) be part of a unidimensional multi-component measuring instrument that may contain also polytomous items,…

The study aims to introduce catIRT tools which facilitates researchers' Item Response Theory (IRT) and Computerized Adaptive Testing (CAT) simulations. catIRT tools provides an interface for mirt and catR packages through the shiny package in R. Through this interface, researchers can apply IRT calibration and CAT simulations although they do not…

Self-esteem plays a decisive role for students in achievement situations. However, it is still unclear how different self-esteem facets and their interactions influence academic achievement and which psychological mechanisms mediate these relationships. In Study 1, we investigated self-handicapping and effort-management as mediators of the effects…

This study aimed to investigate whether the Finger-Nose-Finger (FNF) task could be a potential test to identify school-aged children with probable Developmental Coordination Disorder (pDCD) from a large population. This study recruited 1365 nine to twelve years old children, 362 of whom were identified as pDCD using the Movement Assessment Battery…

As the prevalence of developmental disorders (DDs) has increased, many OECD countries provide a national screening examination for early detection and intervention for DDs. This study examined effects of the National Health Screening Program in Korea. 65,334 children (39%) were DD-screened and 35,466 children (21%) received a false negative among…

Planning intervention for narrative comprehension deficits requires a thorough understanding of a child's skill in all component domains. The purpose of this study was to examine the validity of three methods of measuring pre-readers' event knowledge, an important predictor of story comprehension. Thirty-eight typically developing children (12…