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Karen Grabowski; Robert Morgan; Faith Scanlon – Journal of Intellectual Disabilities, 2024
Intellectual functioning impacts defendants' competence to stand trial, though research on this population remains limited. This study replicated and advanced prior work, focusing on defendants' demographic, clinical, cognitive, and criminal justice variables and their association with length of hospitalization and restoration determinations.…
Descriptors: Intelligence Quotient, Intelligence Differences, Intellectual Disability, Court Litigation
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Rowe, Luke I.; Hattie, John; Hester, Robert – Cognitive Research: Principles and Implications, 2021
Collective intelligence (CI) is said to manifest in a group's domain general mental ability. It can be measured across a battery of group IQ tests and statistically reduced to a latent factor called the "c-factor." Advocates have found the c-factor predicts group performance better than individual IQ. We test this claim by meta-analyzing…
Descriptors: Intelligence, Intelligence Quotient, Intelligence Differences, Meta Analysis
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Hopkins, Thomas; Clegg, Judy; Stackhouse, Joy – International Journal of Language & Communication Disorders, 2018
Background: A high prevalence of Developmental Language Disorder (DLD) is reported in the population of Young Offenders (YO). However, little is known about the extent of the association between language and offending behaviour relative to social disadvantage, education attendance and non-verbal intelligence (IQ), and neither has this association…
Descriptors: Disadvantaged Youth, Delinquency, Juvenile Justice, Expository Writing
Rani, M. Usha; Prakash, Srinivasan – Journal on Educational Psychology, 2015
Intelligence involves the ability to think, solve problems, analyze situations, and understand social values, customs, and norms. Intelligence is a general mental capability that involves the ability to reason, plan, think abstractly, comprehend ideas and language, and learn. Intellectual ability involves comprehension, understanding, and learning…
Descriptors: Intelligence, Intelligence Differences, High School Students, Intellectual Disciplines
Paek, Sue Hyeon; Abdulla, Ahmed M.; Cramond, Bonnie – Gifted Child Quarterly, 2016
There is a long-standing controversy over the relationship between psychopathology and creativity. Yet there is a lack of evidence regarding the relationship between common psychopathologies and indicators of little-c, or every day, creativity among laypeople. To make sense of this connection, we conducted a meta-analysis using 89 studies to…
Descriptors: Meta Analysis, Psychopathology, Attention Deficit Hyperactivity Disorder, Anxiety Disorders
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Lynn, Richard – Intelligence, 2012
National IQs and measures of technological development given by Comin, Easterly and Gong (2010) are presented for 133 nations for the year 1000 BC, for 134 nations for 0 AD, for 120 nations for 1500 AD and for 133 nations for 2000 AD. It is shown that national IQs are significantly correlated with national differences in technological development…
Descriptors: Technological Advancement, Intelligence Quotient, Prediction, Correlation
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Templer, Donald I. – Intelligence, 2012
The present study was intended to provide perspective, albeit less than unequivocal, on the research of Lynn (2010) who reported higher IQs in the northern than southern Italian regions. He attributes this to northern Italians having a greater genetic similarity to middle Europeans and southern Italians to Mediterranean people. Higher regional IQ…
Descriptors: Multiple Intelligences, Schizophrenia, Intelligence Quotient, Genetics
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Allor, Jill H.; Mathes, Patricia G.; Roberts, J. Kyle; Cheatham, Jennifer P.; Al Otaiba, Stephanie – Exceptional Children, 2014
This longitudinal randomized-control trial investigated the effectiveness of scientifically based reading instruction for students with IQs ranging from 40 to 80, including students with intellectual disability (ID). Students were randomly assigned into treatment (n = 76) and contrast (n = 65) groups. Students in the treatment group received…
Descriptors: Reading Instruction, Instructional Effectiveness, Intelligence Quotient, Intelligence Differences
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Wicherts, Jelte M.; Dolan, Conor V. – Educational Measurement: Issues and Practice, 2010
Measurement invariance with respect to groups is an essential aspect of the fair use of scores of intelligence tests and other psychological measurements. It is widely believed that equal factor loadings are sufficient to establish measurement invariance in confirmatory factor analysis. Here, it is shown why establishing measurement invariance…
Descriptors: Factor Structure, Intelligence Tests, Intelligence Quotient, Factor Analysis
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Piirto, Jane; Fraas, John – Journal for the Education of the Gifted, 2012
Two groups of adolescents (N = 114), 61 identified-gifted adolescents (M = 22, F = 39) and 51 vocational school adolescents (M = 27, F = 26), were compared on the Overexcitability Questionnaire. Each of the five Overexcitability (OE) scores--Psychomotor, Sensual, Imaginational, Intellectual, and Emotional--was subjected to a two-way ANOVA by…
Descriptors: Gifted, Questionnaires, Effect Size, Gender Differences
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Lynn, Richard – Intelligence, 2010
Beraldo (2010) and Cornoldi, Belacchi, Giofre, Martini, and Tressoldi (2010) (CBGMT) have eight criticisms of my paper (Lynn, 2010) claiming that the large north-south differences in per capita income in Italy are attributable to differences in the average levels of intelligence in the populations. CBGMT give results for seven data sets for IQs in…
Descriptors: Intelligence, Income, Criticism, Foreign Countries
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Resing, Wilma C. M.; Tunteler, Erika – International Journal of Testing, 2007
In this article, time effects on intelligence test scores have been investigated. In particular, we examined whether the "Flynn effect" is manifest in children from the middle and higher IQ distribution range, measured with a child intelligence test based on information processing principles--the Leiden Diagnostic Test. The test was administered…
Descriptors: Intelligence, Intelligence Quotient, Children, Information Processing
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Fuchs-Beauchamp, Karen D.; And Others – Gifted Child Quarterly, 1993
This study, with 496 children seeking admission to a special program for gifted preschoolers, found that creativity (as measured by the Thinking Creatively in Action and Movement Scale) was significantly related to intelligence (as measured by standard IQ tests) when IQs were less than 120 but was not related at higher IQ levels. (DB)
Descriptors: Correlation, Creativity, Gifted, Intelligence Differences
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Hoard, Mary K.; Geary, David C.; Hamson, Carmen O. – Mathematical Cognition, 1999
Uses neuropsychological and developmental models of number, counting, and arithmetical skills as well as supporting working memory and speed of articulation systems as the theoretical framework for comparing groups of low- and average-IQ children. Indicates that low-IQ children's conceptual understanding of counting did not differ from that of…
Descriptors: Arithmetic, Computation, Intelligence Differences, Intelligence Quotient
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Reilly, Thomas F.; Bullock, Lyndal M. – Behavioral Disorders, 1979
One hundred eighty-eight randomly selected case studies of adjudicated adolescents were analyzed to determine their intellectual levels and the scholastic achievement levels in reading and arithmetic. (CL)
Descriptors: Academic Achievement, Adolescents, Arithmetic, Delinquency
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