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6

A systematic meta-analysis of the relationship between IQ and obesity (Yu, Han, Cao and Guo, 2010) suggested that lower IQ in childhood was associated with later adult obesity via educational level. No evidence of a relationship between IQ and obesity was found for adults. Our study and review of the literature overall suggests that there are inverse ...


6

Because it has been a few years since Jeromy's original answer, and because I just read a very apt article, I will venture an update on the state of the field with respect to the BPI's validity. Overall, despite more research into brain training and Lumosity, there is little to no peer-reviewed evidence supporting the Lumosity BPI's validity, nor evidence ...


5

NB: my apologies, not enough rep points to post additional links. this is far too nebulous a statement, and if it were true, would most likely be based on non-experimental data. one example that immediately comes to mind is case studies looking at the effects of social deprivation amongst children in romanian orphanages. there are also a lot of different ...


4

One meta-analysis of gender differences in cognitive abilities (verbal ability, quantitative ability, and visual–spatial ability): Results indicate that gender differences in all of these abilities were small: For verbal ability, the median ω–2 was .01 and the median d was .24; for quantitative ability, the median values of ω–2 and d were .01 and ...


3

I think what happens is that researchers often don't report on - or at least don't highlight - uninteresting results, partly because of the difficulty getting uninteresting results published. So given that gender differences in IQ in general are eliminated for validity, a lack of gender differences in IQ amongst a seemingly arbitrary sub-population such as ...


3

Critical thinking is an ill-defined concept in the cognitive sciences, so this question most likely has as many answers as there are measures of IQ and critical thinking. An accessible introduction to the literature is available here, with the general cognitive conception of critical thinking given as follows: ... the mental activities that are typically ...


2

Does sleep deprivation cause mood swings? Few studies have focused on mood changes in healthy subjects following sleep deprivation. It seems that there is evidence for sleep deprivation causing mood changes on the subsequent day, but there is no evidence for or against it causing mood swings. Hart et al. (1987) found significantly higher self-reported ...


2

Just did some more reading, going to answer my own question: Fluid intelligence (Gf) refers to mental operations that an individual uses when faced with a relatively novel task that cannot be performed automatically. Inductive and deductive reasoning are generally thought to be the hallmark narrow-ability indicators of Gf. Examples of Gf abilities are: ...



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