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The genetics of g and specific cognitive #CHC abilites. A must read. Includes a commentary rant directed at my fellow #schoolpsychologist #IQ test researchers
This article is a preprint and has not been certified by peer review [what does this mean?].0000000AbstractAbstractMost research on individual differences in performance on tests of cognitive ability focuses on general cognitive ability (g), the highest level in the three-level Cattell-Horn-Carroll (CHC) hierarchical model of intelligence. About 50% of the variance of g is due to inherited DNA differences (heritability) which increases across development. Much less is known about the genetics of the middle level of the CHC model, which includes 16 broad factors such as fluid reasoning, processing speed, and quantitative kn...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - February 12, 2022 Category: Neuroscience Source Type: blogs

A neurocognitive psychometrics account of individual differences in attentional control. - PsycNET
https://doi.apa.org/doiLanding?doi=10.1037%2Fxge0001184Schubert, A.-L., L öffler, C.,& Hagemann, D. (2022). A neurocognitive psychometrics account of individual differences in attentional control. Journal of Experimental Psychology: General. Advance online publication. https://doi.org/10.1037/xge0001184Attention control processes play an important role in many substantial psychological theories but are hard to reliably and validly measure on the subject-level. Therefore, associations between individual differences in attentional control and other variables are often inconsistent. Here we propose a novel...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - February 8, 2022 Category: Neuroscience Source Type: blogs

Attention control and process overlap theory: Searching for cognitive processes underpinning the positive manifold - ScienceDirect
 Attention control and process overlap theory: Searching for cognitive processes underpinning the positive manifold - ScienceDirect  https://www.sciencedirect.com/science/article/abs/pii/S0160289622000101?via%3DihubHighlights•We discuss process overlap theory and the executive attention framework.•Both theories provide explanations for the positive manifold among ability tests.•Analyses revealed that attention control had the highest loading on the g-factor.•Attention control largely explained the positive correlations between abilities.AbstractProcess overlap theory provides a contemporary explanati...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - February 3, 2022 Category: Neuroscience Source Type: blogs

Sex differences in adolescents ’ occupational aspirations: Variations across time and place
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0261438We investigated sex differences in 473,260 adolescents ' aspirations to work in things-oriented (e.g., mechanic), people-oriented (e.g., nurse), and STEM (e.g., mathematician) careers across 80 countries and economic regions using the 2018 Programme for International Student Assessment (PISA). We analyzed student career aspirations in combination with student achievement in mathematics, reading, and science, as well as parental occupations and family wealth. In each country and region, more boys than girls aspired to a things-oriented or STEM occupati...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - February 3, 2022 Category: Neuroscience Source Type: blogs

J. Intell. | Free Full-Text | Linguistic Influences on Cognitive Test Performance: Examinee Characteristics Are More Important than Test Characteristics
https://www.mdpi.com/2079-3200/10/1/8****************************************** Kevin S. McGrew, PhD Educational& School Psychologist Director Institute for Applied Psychometrics (IAP)https://www.themindhub.com ****************************************** (Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner))
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - January 27, 2022 Category: Neuroscience Source Type: blogs

The secular trend of intelligence test scores: The Danish experience for young men born between 1940 and 2000
 The secular trend of intelligence test scores: The Danish experience for young men born between 1940 and 2000  https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0261117****************************************** Kevin S. McGrew, PhD Educational& School Psychologist Director Institute for Applied Psychometrics (IAP)https://www.themindhub.com ****************************************** (Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner))
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - December 14, 2021 Category: Neuroscience Source Type: blogs

Greenspan & Brown (2021) on FASD as per AAIDD and DSM-5-TR approaches
Double click image to enlarge****************************************** Kevin S. McGrew, PhD Educational& School Psychologist Director Institute for Applied Psychometrics (IAP)https://www.themindhub.com ****************************************** (Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner))
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - December 8, 2021 Category: Neuroscience Source Type: blogs

The association between socioeconomic disadvantage and children ’s working memory abilities: A systematic review and meta-analysis
https://dx.plos.org/10.1371/journal.pone.0260788Sent from my iPhone (Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner))
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - December 5, 2021 Category: Neuroscience Source Type: blogs

Frontiers | SENNA Inventory for the Assessment of Social and Emotional Skills in Public School Students in Brazil: Measuring Both Identity and Self-Efficacy | Psychology
  https://www.frontiersin.org/articles/10.3389/fpsyg.2021.716639/full These folks do awesome research.  I recently incorporated the SENNA SE model in my proposed broader Cognitive-Affective-Motivaton Model of Learning (CAMML) that will be in a special issue of the Canadian Journal of School Psychology early next year.****************************************** Kevin S. McGrew, PhD Educational& School Psychologist Director Institute for Applied Psychometrics (IAP)https://www.themindhub.com ****************************************** (Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner))
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - December 5, 2021 Category: Neuroscience Source Type: blogs

Genetically informed, multilevel analysis of the Flynn Effect across four decades and three WISC versions - Giangrande - - Child Development - Wiley Online Library
This study investigated the systematic rise in cognitive ability scores over generations, known as the Flynn Effect, across middle childhood and early adolescence (7 –15 years; 291 monozygotic pairs, 298 dizygotic pairs; 89% White). Leveraging the unique structure of the Louisville Twin Study (longitudinal data collected continuously from 1957 to 1999 using the Wechsler Intelligence Scale for Children [WISC], WISC –R, and WISC–III ed.), multilevel analyses revealed between-subjects Flynn Effects—as both decrease in mean scores upon test re-standardization and increase in mean scores across cohorts—...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - November 13, 2021 Category: Neuroscience Source Type: blogs

The Structure of Intrinsic Motivation | Annual Review of Organizational Psychology and Organizational Behavior
 The Structure of Intrinsic Motivation | Annual Review of Organizational Psychology and Organizational Behavior  https://www.annualreviews.org/doi/abs/10.1146/annurev-orgpsych-012420-091122AbstractIntrinsic motivation (IM) is key for persistence at work. When they are intrinsically motivated, people experience work activities as an end in itself, such that the activity and its goal collide. The result is increased interest and enjoyment of work activities. In this article, we review the current state of knowledge on IM, including studies within organizational, cognitive, and social psychology. We distinguish our ...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - November 13, 2021 Category: Neuroscience Source Type: blogs

For IQs Corner readers: The Cognitive-Affective-Motivation Model of Learning (CAMML): Standing on the Shoulders of Giants - Kevin S. McGrew, 2021
I ' m pleased to share my new pub with my blog readers. The Cognitive-Affective-Motivation Model of Learning (CAMML): Standing on the Shoulders of Giants - Kevin S. McGrew, 2021  https://journals.sagepub.com/doi/abs/10.1177/08295735211054270The Cognitive-Affective-Motivation Model of Learning (CAMML): Standing on the Shoulders of GiantsKevin S. McGrewFirst Published October 25, 2021 Research Article https://doi.org/10.1177/08295735211054270Article information AbstractThe Cognitive-Affective-Motivation Model of Learning (CAMML) is a proposed framework for integrating contemporary moti...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - October 30, 2021 Category: Neuroscience Source Type: blogs

Relations among phonological processing skills and mathematics in children: A meta-analysis. - PsycNET
 Relations among phonological processing skills and mathematics in children: A meta-analysis. - PsycNET  https://psycnet.apa.org/record/2021-98184-001CitationYang, X., Yan, M., Ruan, Y., Ku, S. Y. Y., Lo, J. C. M., Peng, P.,& McBride, C. (2021). Relations among phonological processing skills and mathematics in children: A meta-analysis. Journal of Educational Psychology. Advance online publication. https://doi.org/10.1037/edu0000710AbstractThe present study presents a meta-analysis of the relations between phonological processing abilities and different mathematics subskills. Using a random-eff...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - October 29, 2021 Category: Neuroscience Source Type: blogs

On the prediction of human intelligence from neuroimaging: A systematic review of methods and reporting | bioRxiv
  https://www.biorxiv.org/content/10.1101/2021.10.19.462649v1AbstractHuman intelligence is one of the main objects of study in cognitive neuroscience. Reviews and meta-analyses have proved to be fundamental to establish and cement neuroscientific theories on intelligence. The prediction of intelligence using in vivo neuroimaging data and machine learning has become a widely accepted and replicated result. Here, we present a systematic review of this growing area of research, based on studies that employ structural, functional, and/or diffusion MRI to predict human intelligence in cognitively normal subjects using mach...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - October 25, 2021 Category: Neuroscience Source Type: blogs

‘Race-norming’ kept former NFL players from dementia diagnoses. Their families want answers.
  ' Race-norming ' kept former NFL players from dementia diagnoses. Their families want answers.  https://www.washingtonpost.com/sports/2021/09/29/nfl-concussion-settlement-race-norming/ I believe this refers to demographically adjusted or Heaton neuropsych norms …which have occasionally been used inappropriately in Atkins ID death penalty cases.****************************************** Kevin S. McGrew, PhD Educational& School Psychologist Director Institute for Applied Psychometrics (IAP)https://www.themindhub.com ****************************************** (Source: Intelligent Insights on Intelligence The...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - October 3, 2021 Category: Neuroscience Source Type: blogs