Raven's Standard Progressive Matrices (Raven 1941) is a widely used 60-item long measure of general mental ability. It was recently suggested that, for situations where taking this test is too time consuming, a shorter version, comprised of only the last series of the Standard Progressive Matrices (Myszkowski and Storme 2018) could be used, while…

We analyze a 12-item version of Raven's Standard Progressive Matrices test, traditionally scored with the sum score. We discuss some important differences between assessment in practice and psychometric modelling. We demonstrate some advanced diagnostic tools in the freely available R package, dexter. We find that the first item in the test…

We explore the cognitive skill gap between the adult population in Spain and in the rest of European Union countries using the Program for the International Assessment of Adult Competencies. We find that differences in schooling account for about a third of the average difference in cognitive test scores, whereas differences in socioeconomic…

Objective: To examine the manifestation of cognitive control deficit of children with different levels of hyperactivity, an "at risk" dimension for ADHD. Method: A group of children with high hyperactivity (N = 40) and another group of children with low levels of hyperactivity (N = 38) performed a modified stop-signal anticipation task,…

School psychologists in today's schools have the unique opportunity--and responsibility--to guide identification for gifted programs. "Who is gifted?" remains a perennial question in the gifted education literature, not answered by group intelligence screeners that purportedly level the playing field for all. As the student body grows…

This initial study used an equivalent-groups design to evaluate differences in story comprehension scores between children with autism spectrum disorder (ASD) and their neurotypical (NT) peers using paper and iPad® storybooks. Fifteen children with ASD of ages 4-6 and 15 NT peers matched for receptive vocabulary age and gender met inclusion…

The factor structure of the 16 core and supplementary Cattell-Horn-Carroll (CHC) model subtests for the Kaufman Assessment Battery for Children-Second Edition (KABC-II; Kaufman and Kaufman, 2004a) standardization sample samples aged 7-18 (N = 2025) was examined using exploratory factor analytic techniques (EFA) not included in the KABC-II manual…

Labels for scores stemming from intelligence tests have been employed since their inception in the United States. The purpose of this study was to systematically identify and document score labels for IQs used during the past 102 years. Using pairs of reviewers, score labels from 40 tests were reviewed, and 61 unique labels were identified.…

The construct validity of the Spanish Version of the Wechsler Intelligence Scale for Children Fifth Edition (WISC-V[superscript Spain]) was investigated via confirmatory factor analysis. For all 15 subtests, the higher-order model preferred by Wechsler (2015b) contained five group factors but lacked discriminant validity. A bifactor model with…

The factor structure of the Wechsler Intelligence Scale for Children--Fourth Edition, Italian adaptation (WISC-IV Itaian; Orsini, Pezzuti, & Picone, 2012; Wechsler, 2012) standardization sample was examined with exploratory factor analytic methods (EFA) not included in the "Technical Manual." Principal-axis extraction followed by…

Remote association, the ability to form new relations between independent elements, was assessed using the Remote Associates Test (RAT). The Chinese RAT (CRAT) includes the Chinese radical RAT (CRRAT), Chinese word RAT (CWRAT), and Chinese compound RAT (CCRAT). Behavioral research indicates that an individual's performance on the CRAT reflects…

This study investigated the effects of a number sense intervention in 5-year-old Italian children (n = 96) from different socioeconomic status (SES) backgrounds. We investigated whether a short-term intervention could enable low SES children to reach the same level of their middle-upper SES peers in number sense; in addition, we compared the…

An assessment of graphic literacy was developed by articulating and subsequently validating a skills-based cognitive model intended to substantiate the plausibility of score interpretations. Model validation involved use of multiple sources of evidence derived from large-scale field testing and cognitive labs studies. Data from large-scale field…

The aim of this study was to examine whether the use of a response-to-intervention (RTI) model to identify specific learning disability (SLD) over-identifies children and youth with population-relative (normative) weaknesses in general cognitive ability (IQs < 90). We compared the overall score on the Kaufman Brief Intelligence Test-Second…

The scientific approach to the study of creative problem-solving has shifted from using classic insight problems (e.g., the "Nine-dots" problem), toward sets of problems that have more robust psychometric properties, such as the Remote Associate Test (RAT). Because it is homogeneous, compact, quickly solvable, and easy to score, the RAT…