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McFarland, Dennis – Journal of Intelligence, 2020
Network models of the WAIS-IV based on regularized partial correlation matrices have been reported to outperform latent variable models based on uncorrected correlation matrices. The present study sought to compare network and latent variable models using both partial and uncorrected correlation matrices with both types of models. The results show…
Descriptors: Correlation, Matrices, Adults, Intelligence Tests
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Negri, Attà; Castiglioni, Marco; Caldiroli, Cristina Liviana; Barazzetti, Arianna – Journal of Intelligence, 2022
Cognitive science has gathered robust evidence supporting the hypothesis that cognitive processes do not occur in an amodal format but take shape through the activation of the sensorimotor systems of the agent body, which works as simulation system upon which concepts, words, and thought are based. However, studies that have investigated the…
Descriptors: Intelligence, Cognitive Processes, Cognitive Science, Human Body
Atmaca, Furkan; Baloglu, Mustafa – Gifted Child Quarterly, 2022
We compared the Wechsler scores of individuals with twice-exceptionality (2e) and giftedness using a three-level Bayesian meta-analysis. Ninety-five effect sizes were calculated from 15 studies (n = 2,106). Results show that individuals with 2e who have learning disabilities perform lower than individuals with giftedness in Full-Scale Intelligence…
Descriptors: Meta Analysis, Gifted Disabled, Intelligence Quotient, Identification
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Biesmans, K. E.; Aken, L.; Frunt, E. M. J.; Wingbermühle, P. A. M.; Egger, J. I. M. – Journal of Intellectual Disability Research, 2019
Background: Assessment of intelligence and executive function (EF) is common in complex neuropsychiatric practice. Although previous studies have shown that EF and intelligence are related, it is unknown whether these constructs relate to one another in a similar manner across different ability groups (mild intellectual disability, borderline…
Descriptors: Intelligence, Executive Function, Psychiatry, Correlation
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Windsor, Tim D.; Curtis, Rachel G.; Luszcz, Mary A. – Developmental Psychology, 2015
Having a sense of purpose is recognized as an important resource for maintaining health and well-being over the life span. We examined associations of individual differences in sense of purpose with levels and rates of change in indices of aging well (health, cognition, and depressive symptoms) in a sample of 1,475 older adults (M[subscript age] =…
Descriptors: Aging (Individuals), Well Being, Individual Differences, Scores
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Draganich, Christina; Erdal, Kristi – Journal of Experimental Psychology: Learning, Memory, and Cognition, 2014
The placebo effect is any outcome that is not attributed to a specific treatment but rather to an individual's mindset (Benson & Friedman, 1996). This phenomenon can extend beyond its typical use in pharmaceutical drugs to involve aspects of everyday life, such as the effect of sleep on cognitive functioning. In 2 studies examining whether…
Descriptors: Experimental Psychology, Cognitive Processes, Cognitive Ability, Sleep
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Kanai, Chieko; Tani, Masayuki; Hashimoto, Ryuichiro; Yamada, Takashi; Ota, Haruhisa; Watanabe, Hiromi; Iwanami, Akira; Kato, Nobumasa – Research in Autism Spectrum Disorders, 2012
Little is known about the cognitive profiles of high-functioning Pervasive Developmental Disorders (PDD) in adults based on the Wechsler Intelligence Scale III (WAIS-III). We examined cognitive profiles of adults with no intellectual disability (IQ greater than 70), and in adults with Asperger's disorder (AS; n = 47), high-functioning autism (HFA;…
Descriptors: Intelligence Quotient, Verbal Ability, Scores, Comparative Analysis
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Miyaguchi, Koji; Shirataki, Sadaaki – Journal of Intellectual & Developmental Disability, 2014
Background: Many hypotheses have been proposed to address the relationship between sex offenders and neuropsychological functions. Method: The purpose of this study was to evaluate differences in executive functions between juvenile sex offenders and non-sex offenders with/without low IQ by using the Behavioural Assessment of the Dysexecutive…
Descriptors: Executive Function, Intelligence Quotient, Sexual Abuse, Juvenile Justice
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Golay, Philippe; Lecerf, Thierry – Psychological Assessment, 2011
According to the most widely accepted Cattell-Horn-Carroll (CHC) model of intelligence measurement, each subtest score of the Wechsler Intelligence Scale for Adults (3rd ed.; WAIS-III) should reflect both 1st- and 2nd-order factors (i.e., 4 or 5 broad abilities and 1 general factor). To disentangle the contribution of each factor, we applied a…
Descriptors: Adults, Intelligence Tests, Measures (Individuals), Factor Analysis
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Copet, P.; Jauregi, J.; Laurier, V.; Ehlinger, V.; Arnaud, C.; Cobo, A. -M.; Molinas, C.; Tauber, M.; Thuilleaux, D. – Journal of Intellectual Disability Research, 2010
Background: Prader-Willi syndrome (PWS) is a rare genetic disorder characterised by developmental abnormalities leading to somatic and psychological symptoms. These include dysmorphic features, impaired growth and sexual maturation, hyperphagia, intellectual delay, learning disabilities and maladaptive behaviours. PWS is caused by a lack of…
Descriptors: Genetic Disorders, Intelligence, Body Composition, Mental Retardation
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Gordon, Shirley; Duff, Simon; Davidson, Terry; Whitaker, Simon – Journal of Applied Research in Intellectual Disabilities, 2010
Background: Previous research with earlier versions of the WISC and WAIS has demonstrated that when administered to people who have intellectual disabilities, the WAIS produced higher IQ scores than the WISC. The aim of this study was to examine whether these differences still exist. A comparison of the Wechsler Adult Intelligence Scale-Third…
Descriptors: Intelligence, Mental Retardation, Psychologists, Intelligence Quotient
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Feingold, Alan – Review of Educational Research, 1992
Sex differences in variability in the national norms of the Differential Aptitude Tests, Preliminary Scholastic Aptitude Test/Scholastic Aptitude Test, Wechsler Adult Intelligence Scales, and California Achievement Tests were examined. Compared to females, males were consistently more variable in quantitative reasoning, spatial visualization,…
Descriptors: Achievement Tests, Aptitude Tests, Cognitive Processes, College Entrance Examinations