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Direct linkJewsbury, Paul A.; Bowden, Stephen C.; Duff, Kevin – Journal of Psychoeducational Assessment, 2017
The Cattell-Horn-Carroll (CHC) model is a comprehensive model of the major dimensions of individual differences that underlie performance on cognitive tests. Studies evaluating the generality of the CHC model across test batteries, age, gender, and culture were reviewed and found to be overwhelmingly supportive. However, less research is available…
Descriptors: Intelligence Tests, Individual Differences, Executive Function, Neuropsychology
Download full textvon Oertzen, Timo; Schmiedek, Florian; Voelkle, Manuel C. – Journal of Intelligence, 2020
Properties of psychological variables at the mean or variance level can differ between persons and within persons across multiple time points. For example, cross-sectional findings between persons of different ages do not necessarily reflect the development of a single person over time. Recently, there has been an increased interest in the…
Descriptors: Cognitive Ability, Individual Differences, Statistical Analysis, Factor Analysis
Cornelius, Colleen; Fedewa, Alicia L.; Ahn, Soyeon – Journal of Applied School Psychology, 2017
Research on the effects of physical activity on children with attention deficit hyperactivity disorder is promising, yet no attempt has been made to integrate current findings using meta-analytic techniques. Using a meta-regression, the present study examined the effectives of physical activity for children with attention deficit hyperactivity…
Descriptors: Physical Activity Level, Attention Deficit Hyperactivity Disorder, Effect Size, Children
Lyons, Michael J.; Panizzon, Matthew S.; Liu, Weijian; McKenzie, Ruth; Bluestone, Noah J.; Grant, Michael D.; Franz, Carol E.; Vuoksimaa, Eero P.; Toomey, Rosemary; Jacobson, Kristen C.; Reynolds, Chandra A.; Kremen, William S.; Xian, Hong – Developmental Psychology, 2017
In this longitudinal study we examined the stability of general cognitive ability (GCA), as well as heterogeneity and genetic and environmental influences underlying individual differences in change. We investigated GCA from young adulthood through late midlife in 1,288 Vietnam Era Twin Study of Aging participants at ages ~20, ~56, and ~62 years.…
Descriptors: Twins, Genetics, Longitudinal Studies, Correlation
Martin, Nadia; Hughes, Jeffrey; Fugelsang, Jonathan – Statistics Education Research Journal, 2017
We examine the joint effects of gender and experience on statistical reasoning. Participants with various levels of experience in statistics completed the Statistical Reasoning Assessment (Garfield, 2003), along with individual difference measures assessing cognitive ability and thinking dispositions. Although the performance of both genders…
Descriptors: Gender Differences, Experience, Statistical Analysis, Logical Thinking
Mamedova, Saida; Sparks, Dinah; Hoyer, Kathleen Mulvaney – National Center for Education Statistics, 2017
The Organization for Economic Cooperation and Development (OECD) conducted the Program for the International Assessment of Adult Competencies (PIAAC), a multi-domain adult skills assessment with an extensive background questionnaire, in 2012. PIAAC is a global effort to understand how individuals' education, workplace experiences, and other…
Descriptors: Adult Literacy, Numeracy, Foreign Countries, Cross Cultural Studies
Tillmann, J.; Ashwood, K.; Absoud, M.; Bölte, S.; Bonnet-Brilhault, F.; Buitelaar, J. K.; Calderoni, S.; Calvo, R.; Canal-Bedia, R.; Canitano, R.; De Bildt, A.; Gomot, M.; Hoekstra, P. J.; Kaale, A.; McConachie, H.; Murphy, D. G.; Narzisi, A.; Oosterling, I.; Pejovic-Milovancevic, M.; Persico, A. M.; Puig, O.; Roeyers, H.; Rommelse, N.; Sacco, R.; Scandurra, V.; Stanfield, A. C.; Zander, E.; Charman, T. – Journal of Autism and Developmental Disorders, 2018
Research on sex-related differences in Autism Spectrum Disorder (ASD) has been impeded by small samples. We pooled 28 datasets from 18 sites across nine European countries to examine sex differences in the ASD phenotype on the ADI-R (376 females, 1763 males) and ADOS (233 females, 1187 males). On the ADI-R, early childhood restricted and…
Descriptors: Gender Differences, Age Differences, Diagnostic Tests, Observation
Sleep and Cognitive Functioning in Childhood: Ethnicity, Socioeconomic Status, and Sex as Moderators
Philbrook, Lauren E.; Hinnant, J. Benjamin; Elmore-Staton, Lori; Buckhalt, Joseph A.; El-Sheikh, Mona – Developmental Psychology, 2017
We examined children's sleep at age 9 as a predictor of developmental trajectories of cognitive performance from ages 9 to 11 years. The effects of sleep on cognition are not uniform and thus we tested race/ethnicity, socioeconomic status (SES), and sex as moderators of these associations. At the first assessment, 282 children aged 9.44 years (52%…
Descriptors: Children, Preadolescents, Sleep, Predictor Variables
Gurven, Michael; Fuerstenberg, Eric; Trumble, Benjamin; Stieglitz, Jonathan; Beheim, Bret; Davis, Helen; Kaplan, Hillard – Developmental Psychology, 2017
Cognitive performance is characterized by at least two distinct life course trajectories. Many cognitive abilities (e.g., "effortful processing" abilities, including fluid reasoning and processing speed) improve throughout early adolescence and start declining in early adulthood, whereas other abilities (e.g., "crystallized"…
Descriptors: Foreign Countries, Agricultural Occupations, Cognitive Ability, Age Differences
Ricker, Ashley A.; Corley, Robin; DeFries, John C.; Wadsworth, Sally J.; Reynolds, Chandra A. – Developmental Psychology, 2018
The present study prospectively evaluated cumulative early life perceived stress in relation to differential change in memory and perceptual speed from middle childhood to early adulthood. We aimed to identify periods of cognitive development susceptible to the effects of perceived stress among both adopted and nonadopted individuals. The sample…
Descriptors: Stress Variables, Memory, Cognitive Processes, Age Differences
Karssen, Merlijn; van der Veen, Ineke; Volman, Monique – Social Psychology of Education: An International Journal, 2017
The number of bi-ethnic children is increasing. The focus of this study is on bi-ethnic students in the Netherlands with one parent with an ethnic majority background and one parent with an ethnic minority background. Most studies that have investigated educational outcomes and social functioning in school for bi-ethnic students have not focused…
Descriptors: Ethnicity, Multiracial Persons, Foreign Countries, Minority Groups
Belle, Janna; van Hulst, Branko M.; Durston, Sarah – Journal of Child Psychology and Psychiatry, 2015
Background: Intra-individual variability reflects temporal variation within an individual's performance on a cognitive task. Children with developmental disorders, such as ADHD and ASD show increased levels of intra-individual variability. In typical development, intra-individual variability decreases sharply between the ages 6 and 20. The tight…
Descriptors: Individual Differences, Attention Deficit Hyperactivity Disorder, Autism, Pervasive Developmental Disorders
Duke, Naomi; Macmillan, Ross – Sociology of Education, 2016
Education is a key sociological variable in the explanation of health and health disparities. Conventional wisdom emphasizes a life course--human capital perspective with expectations of causal effects that are quasi-linear, large in magnitude for high levels of educational attainment, and reasonably robust in the face of measured and unmeasured…
Descriptors: Educational Attainment, Longitudinal Studies, National Surveys, Adolescents
Jaekel, Nils; Schurig, Michael; Florian, Merle; Ritter, Markus – Language Learning, 2017
Foreign language education has now been implemented at the elementary school level across Europe, and early foreign language education has gained traction following language policies set by the European Commission. The long-term effects of an early start, however, have not received ample scientific scrutiny. The present study assessed early…
Descriptors: Second Language Instruction, Grade 5, Grade 7, Foreign Countries
Woldehanna, Tassew – International Journal of Behavioral Development, 2016
This study used longitudinal data from the Young Lives Project in Ethiopia to examine the main factors relating to preschool access and their potential effects on cognitive performance of children aged five and eight years. The results show that only one quarter of the preschool-aged children have the opportunity to attend this vital stage of…
Descriptors: Equal Education, Preschool Education, Family Financial Resources, Geographic Regions
