The Flynn effect, which refers to the steady rise in intelligence test scores observed over decades, has been a subject of significant interest in psychological research. While this phenomenon has been extensively documented in European populations, fewer studies have explored its presence or reversal in the United States, especially among …
Shields et al. (2023) examined the effectiveness of the National Institutes of Health Toolbox Cognition Battery (NIHTB-CB) in identifying cognitive development and changes in individuals with intellectual disabilities (ID). The study focused on groups with fragile X syndrome (FXS), Down syndrome (DS), and other forms of intellectual disability (OID), offering …
Leifeng Xiao and Kit-Tai Hau’s article, “Performance of Coefficient Alpha and Its Alternatives: Effects of Different Types of Non-Normality,” examines how coefficient alpha and other reliability indices perform under varying conditions of non-normality. The study offers critical insights into how these measures behave across different data structures, providing useful recommendations …
This review focuses on the work of Keuschnigg, van de Rijt, and Bol (2023), who explore the relationship between cognitive ability and success in high-income and high-prestige occupations. Their findings challenge the assumption that the highest earners consistently display exceptional cognitive ability, offering new insights into how social factors and …
The Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V) has been widely used to assess cognitive abilities in children. This article by Peter F. de Jong evaluates the validity of interpreting WISC-V profiles of strengths and weaknesses, which are often derived from differences between overall scores and index scores. Background The …
Jari Metsämuuronen’s (2022) article introduces a significant advancement in how reliability is estimated within psychological assessments. The study critiques traditional methods for their tendency to yield deflated results and proposes new attenuation-corrected estimators to address these limitations. This review examines the article’s contributions and its implications for improving measurement precision. …
Baldwin et al. (2022) examine how strategic self-control and willpower influence Scholastic Assessment Test (SAT) preparation and performance. Their findings provide valuable insights into how students can enhance their outcomes on high-stakes exams by focusing on effective self-control strategies. Background The study is based on the premise that self-control is …
Landrigan et al. (2022) present a detailed strategy for evaluating how air pollution affects health and cognitive function at the community level. Their study focuses on Massachusetts, revealing significant health outcomes and IQ loss even at air pollution levels below current EPA standards. The findings emphasize the need for stricter …
The study by Belfort et al. (2022) investigates the impact of maternal milk feeding on neurodevelopmental outcomes in preterm infants at 7 years of age. Conducted across multiple Australian perinatal centers, this research provides valuable insights into how early nutrition may influence long-term cognitive and academic performance in children born …
The study by Paul et al. (2022), published in Brain, investigates the effects of the CORD7 mutation on synaptic transmission and its connection to cognitive abilities. This mutation, linked to increased verbal IQ and enhanced working memory, alters the RIMS1/RIM1 protein at presynaptic active zones. The research offers new insights …
