Bayesian structural equation modeling (BSEM) was used to investigate the latent structure of the Differential Ability Scales-Second Edition core battery using the standardization sample normative data for ages 7-17. Results revealed plausibility of a three-factor model, consistent with publisher theory, expressed as either a higher-order (HO) or a…

In this article, I describe the 21 ideas underlying a 42-year search to understand giftedness. I present the ideas roughly chronologically, in the order in which they arose, and discuss how in a career as in science, progress means supplementing or even superseding one idea with the next. In terms of the 21 ideas, I start with a discussion of how…

To support employment of individuals with severe disabilities, instructional approaches for improving independent performance are urgently needed. The purpose of this research was to assess the effects of TEACCH structured teaching on the independent work skills of individuals with severe disabilities in a job setting. A multiple probe across…

Autobiographical accounts and a limited research literature suggest that adults with autism spectrum disorders can experience difficulties with decision-making. We examined whether some of the difficulties they describe correspond to quantifiable differences in decision-making when compared to adults in the general population. The participants (38…

Recent advances in understanding visual working memory, the limited information held in mind for use in ongoing processing, are extended here to examine auditory working memory development. Research with arrays of visual objects has shown how to distinguish the capacity, in terms of the "number" of objects retained, from the…

Purpose: The purpose of this study was to evaluate, over 2 separate school years, the school-district-wide failure rate of kindergartners on a screener of grammatical tense marking--the Rice Wexler Test of Early Grammatical Impairment (TEGI) Screening Test (Rice & Wexler, 2001)--composed of past tense (PT) and third-person singular (3S)…

The development of emotion understanding in young Chinese preschoolers was examined. The overall developmental trend, as measured by the Test of Emotion Comprehension (TEC), proved similar to that found among preschoolers in Western Europe. However, Chinese children performed better at understanding the distinction between real and apparent…

The process by which morphologically complex words are recognized and stored is a matter of ongoing debate. A large body of evidence indicates that complex words are automatically decomposed during visual word recognition in adult readers. Research with developing readers is limited and findings are mixed. This study aimed to investigate…

Background: This study examined whether a sensory adapted dental environment (SADE) diminished anxiety and agitation in adults with intellectual and developmental disability (IDD) when compared to a routine dental environment (RDE). Method: Agitated behaviours (frequency and duration) were video-taped and anxiety-related physiological measures…

Household income shocks in developing countries are known to have an impact on the education investments for children. In this paper, we explore the effects of various income and expenditure shocks on educational investment and cognitive outcomes of children using three rounds of household-level panel data from Young Lives survey conducted in two…

Purpose: This study investigates the interaction of language ability status, cultural experience, and nonverbal cognitive skill performance in Spanish-English bilinguals with typical development (TD) and developmental language disorder (DLD). Method: One hundred sixty-nine Spanish-English bilingual kindergartener's scores on the Symbolic Memory…

Youth with conduct problems present frequently depressive symptoms. Academic skills are thought to be a mediating variable by which conduct problems could lead to depressive symptoms. No studies have longitudinally compared this model among school-aged boys and girls with different levels of conduct problems. Cascade models were tested to examine…

This study explores the differences in the motivational profiles of under-achieving gifted students and high-achieving gifted and non-gifted students. In comparison to their high-achieving peers, under-achieving gifted students reported weaker motivational orientations, in both achievement and social goals, as well as in intrinsic motivation.…

The current study seeks to shed light on the usage habits of the "WhatsApp" application among teenagers, exploring the effect of mobile instant messaging distractions on pupils' working memory performance. Research was conducted in Israel during 2016 school year. The study sample was divided into two groups randomly--a control group and…

The current study investigated the stability of children's risk status across the preschool year. A total of 1,102 preschool children attending Title 1 schools (n = 631) and non-Title 1 schools (n = 471) participated in this study. Using averaged standard scores for two measures of language, print knowledge, and phonological awareness administered…