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Direct linkLemos, Gina C.; Abad, Francisco J.; Almeida, Leandro S.; Colom, Roberto – Intelligence, 2013
The analysis of sex differences in cognitive abilities is largely confusing because these differences are masked by the pervasive influence of the general factor of intelligence (g). In this study a battery of five reasoning tests (abstract [AR], numerical [NR], verbal [VR], mechanical [MR], and spatial [SR]) was completed by a sample of 3233…
Descriptors: Cognitive Ability, Adolescents, Gender Differences, Intelligence Quotient
Burgaleta, Miguel; Head, Kevin; Alvarez-Linera, Juan; Martinez, Kenia; Escorial, Sergio; Haier, Richard; Colom, Roberto – Intelligence, 2012
It has been proposed that males would show higher mean scores than females in general intelligence ("g") because (1) men have, on average, larger brains than women, and (2) brain volume correlates with "g." Here we report a failure to support the conclusion derived from these premises. High resolution MRIs were acquired in a sample of one hundred…
Descriptors: Brain, Intelligence, Gender Differences, Verbal Ability
Colom, Roberto; Stein, Jason L.; Rajagopalan, Priya; Martinez, Kenia; Hermel, David; Wang, Yalin; Alvarez-Linera, Juan; Burgaleta, Miguel; Quiroga, Ma. Angeles; Shih, Pei Chun; Thompson, Paul M. – Intelligence, 2013
Here we apply a method for automated segmentation of the hippocampus in 3D high-resolution structural brain MRI scans. One hundred and four healthy young adults completed twenty one tasks measuring abstract, verbal, and spatial intelligence, along with working memory, executive control, attention, and processing speed. After permutation tests…
Descriptors: Females, Intelligence, Brain, Spatial Ability
van der Sluis, Sophie; Posthuma, Danielle; Dolan, Conor V.; de Geus, Eco J. C.; Colom, Roberto; Boomsma, Dorret I. – Intelligence, 2006
Using multi-group covariance and means structure analysis (MG-CMSA), this study investigated whether sex differences were present on the Dutch WAIS-III, and if so, whether these sex differences were attributable to differences in general intelligence ("g"). The sample consisted of 294 females and 228 males between 18 and 46 years old.…
Descriptors: Gender Differences, Foreign Countries, Cognitive Ability, Intelligence
Dolan, Conor V.; Colom, Roberto; Abad, Francisco J.; Wicherts, Jelte M.; Hessen, David J.; van de Sluis, Sophie – Intelligence, 2006
We investigated sex effects and the effects of educational attainment (EA) on the covariance structure of the WAIS-III in a subsample of the Spanish standardization data. We fitted both first order common factor models and second order common factor models. The latter include general intelligence ("g") as a second order common factor.…
Descriptors: Educational Attainment, Gender Differences, Intelligence, Models
Colom, Roberto; Abad, Francisco J. – Intelligence, 2007
Mackintosh and Bennett's [Mackintosh, N. J. and Bennett, E. S, (2005). ''What do Raven's Matrices measure? An analysis in terms of sex differences.'' Intelligence 33: 663-674.] study shows that males outperform females in some APM items but not in others, implicating that these items are measuring discriminable mental processes. The present…
Descriptors: Test Bias, Gender Differences, Cognitive Processes, Measures (Individuals)
