This study aimed to develop a comprehensive tool to assess underachievement in gifted students, incorporating input from parents, teachers, and students themselves. A total of 285 participants, including 95 gifted students, their parents, and teachers, were involved in the study. The results have revealed a four-factor structure for the Gifted…

There has been increased interest in assessing the quality and usefulness of short versions of the Raven's Progressive Matrices. A recent proposal, composed of the last twelve matrices of the Standard Progressive Matrices (SPM-LS), has been depicted as a valid measure of "g." Nonetheless, the results provided in the initial validation…

Assessing higher-level verbal repertoires of individuals with autism and related intellectual disabilities is crucial due to the language and cognitive deficits experienced by this population as well as is the need for valid assessment tools for data-driven and individualized treatment. In addition to, curricula or instructional protocols that…

This paper presents evidence of the score reliability, factor structure, criterion-related validity, and measurement equivalence of a web-based assessment of several important social and emotional competencies for children in fourth through sixth grades. The assessment, SELweb LE (Late Elementary), is designed to measure children's understanding…

Background: School attainment tests and Cognitive Abilities Tests are used in the United Kingdom to set targets for educational outcome. Whilst these are good predictors, they depend not only on basic ability but also on learnt knowledge and skills, such as reading. Method and Aims: VESPARCH is an online group test of verbal and spatial reasoning,…

It is widely believed that subscores can give us more information about an examinee. Thus they can be useful in planning instructional and remedial efforts, or making vocational or academic placement decisions. However, past research has shown that subscores are often not as useful as hoped either because they do not have high reliability or…

The Sustainable Development Goals mandate that by 2030, all children should have access to quality early child development opportunities, healthcare and pre-primary education. Yet validated measures of ECD in low and middle income countries (LMICs) are rare. To address this gap, a Systematic Review (SR) of measures available to profile the…

This study assessed the reliability and criterion-related validity of teacher ratings on the Adapted Skillstreaming Checklist for a sample of 133 children, aged 6-11 years, with autism spectrum disorder (without intellectual disability). Internal consistency for the total sample was 0.93. For a subsample, test-retest reliability was very good (r =…

The representativeness, recency, and size of norm samples strongly influence the accuracy of inferences drawn from their scores. Inadequate norm samples may lead to inflated or deflated scores for individuals and poorer prediction of developmental and academic outcomes. The purpose of this study was to apply Kranzler and Floyd's method for…

This study presents construct validity for a novel automated morphometric and kinematic handwriting assessment, including (1) convergent validity, establishing reliability of automated measures with traditional manual-derived Minnesota Handwriting Assessment (MHA), and (2) discriminant validity, establishing that the automated methods distinguish…

The Prudhoe Cognitive Function Test (PCFT) directly measures the cognitive abilities of people with intellectual impairment. This study examined the relationship between this instrument and the Kaufman Brief Intelligence Test (K-BIT) and two shorter versions of the same scale. High correlations between the verbal and performance sections of the…

The aim of this paper is to demonstrate the dramatic consequences the application of cut-off points can have in the practice of identifying gifted individuals. The paradoxical attenuation effect describes the frequent situation in which measurements of the gifts and talents individuals possess are lower than their true values. However, in…

The question regarding the appropriateness of the use of tests of intelligence and cognitive abilities developed in the United States to assess people from other countries was renewed in the debate between Suen and Greenspan (2008) and Sanchez-Escobedo and Hollingworth (2009). This controversy arose from challenges in the translation, adaptation,…

This article provides a review of the Wechsler Nonverbal Scale of Ability (WNV), a general cognitive ability assessment tool for individuals' aged 4 year 0 months through 21 years 11 months with English language and/or communicative limitations. The test targets a population whose performance on intelligence batteries might be compromised by…