Articles tagged with Intelligence Testing
Infants fed with DHA-enriched formula from birth to 12 months showed accelerated development and better performance on intelligence tests, including the Peabody Picture Vocabulary Test and Weschler Primary Preschool Scales of Intelligence.
A study published in JAMA Pediatrics found that longer breastfeeding durations are associated with better receptive language at age 3 and verbal and nonverbal intelligence at age 7. Higher fish intake during lactation also appeared to strengthen the relationship between infant feeding and later cognition.
A nationwide study of Spanish adolescents reveals that girls who walk to school for over 15 minutes perform better in cognitive tests. The researchers argue that inactive adolescence could be missed out on a key stimulus to improve learning and cognitive function.
A study by Northwestern University researcher Robert Hanlon found that impulsive murderers are more mentally impaired than strategic planners. Nearly all impulsive murderers had a history of alcohol or drug abuse and were intoxicated at the time of the crime.
A study at Duke University found that lemurs in larger social groups exhibit more 'social intelligence' and are more likely to steal food behind a human's back. The research supports the 'social intelligence hypothesis,' suggesting that living in large social networks drove the evolution of complex social cognition in primates.
A new study found that individuals whose brains are better at automatically suppressing background motion perform better on standard measures of intelligence. The test, which measures the brain's unconscious ability to filter out visual movement, shows a strong correlation with IQ scores.
Research suggests that playing traditionally masculine activities can improve girls' performance in subjects requiring spatial ability. Gender-roles play a significant role in shaping individual differences in spatial ability, with both masculine and feminine identification leading to better performance in mental rotation tasks.
New research from University of Pennsylvania psychologists suggests that changing one's mind about delaying gratification can be a rational decision when the timing of the payoff is uncertain. The study found that people tend to overestimate how long they will have to wait, leading to decreased self-control.
A study by Rice University found that testing enhances learning among adults of all ages, improving memory retention and job performance. The research discovered that participants who took tests showed improved retention compared to restudying, even after a two-day delay.
A new study tracked nearly 7,000 adults from age 11 to 45 and found that men and women with higher intelligence in childhood were less likely to develop chronic widespread pain. The study also showed that individuals with lower intelligence at age 11 had a higher risk of developing CWP.
A new study of eight child prodigies suggests a possible link between their special skills and autism. The prodigies, who scored exceptionally on working memory tests, show elevated autistic traits but lack the typical deficits associated with autism.
Researchers analyzed 12 genes and found no correlation with intelligence in nearly every case, contradicting previous studies that identified specific genes linked to intelligence. The study suggests that the genetic roots of intelligence may be more complex than previously thought.
Artificially intelligent game bots created by the University of Texas at Austin have won the BotPrize competition, scoring a humanness rating of 52% compared to humans' average of 40%. The winning bots use a two-pronged approach to mimic human behavior, combining direct modeling with neuroevolution.
Standard head movements during MRI scanner exposure temporarily lower concentration and visuospatial awareness, particularly in tasks requiring high working memory. This may have implications for surgeons and other healthcare staff.
A team of academics has developed an AI soccer manager that consistently ranks among the top 1% of players in the English Fantasy Football League. The software analyzes player statistics and performance to pick its team each week, outperforming human competitors.
A new study from Tel Aviv University finds that intelligence is a more accurate predictor of future career success than socio-economic background. Intelligence was shown to have a direct correlation with an upward wage trajectory, indicating that it plays a crucial role in long-term career advancement.
A NIH-funded study found that HIV-positive children treated after showing moderate symptoms did not experience greater cognitive or behavior problems compared to those treated earlier. However, both groups lagged behind HIV-negative peers in these areas, suggesting an early treatment window for minimizing impairments.
A new Harvard study found that nearly every case of hypothesized genetic pathways failed to replicate, indicating intelligence may be tied to many genes and their interactions. The researchers used large data sets to examine a dozen genes and found only one gene associated with intelligence, which had a small effect.
A study published in PLOS ONE found that students' ability to estimate time is correlated with their math skills, suggesting a common reliance on spatial ability. The researchers suggest that developing this skill could improve mathematical intelligence.
A new clinical trial found that Pycnogenol, a natural antioxidant plant extract, significantly enhances mental performance in healthy college students. The study revealed improved sustained attention, memory, and mood, as well as higher test scores on university exams and reduced anxiety by 17 percent.
A study found that babies born with very low birth weight had lower cognitive test scores, particularly in executive functioning such as attention and visual memory, compared to those born at a normal weight. The study also showed no difference in academic performance but highlighted the importance of full development in the womb.
A study published by the American Psychological Association found that creative individuals are more prone to cheating, as their talent can lead them to justify unethical behavior. This contradicts the notion that intelligence and dishonesty are unrelated.
A study by McMaster University researchers found that voters tend to prefer candidates with lower-pitched voices, perceiving them as more attractive and dominant. This preference is related to the cue of dominance, which has been an important factor in human leadership throughout evolution.
A new study published in Perspectives on Psychological Science suggests that women's lower scores on technical aptitude tests may be due to biased testing methods rather than a lack of interest. The researcher found that women score lower on technical aptitude at all intelligence levels, while also exhibiting higher levels of general i...
Research finds that IQ can increase or decrease significantly during adolescence, with changes linked to brain structure. Brain scans revealed correlations between improved verbal and non-verbal IQ scores and increased grey matter density in specific brain areas.
New research suggests that faster cerebral cortex growth in infancy is linked to better cognitive abilities in children born prematurely. A study of 82 preterm infants found that higher rates of brain growth were associated with improved scores on intelligence tests and motor skills.
Pre-schoolers improved their verbal intelligence and brain function after participating in a four-week learning program that combined interactive, music-based cognitive training cartoons. The study, led by Dr. Sylvain Moreno, found rapid transfer of cognitive benefits in 90% of children.
Asperger individuals display uneven profiles of performance in common intelligence test batteries, but scores are much higher on a reasoning-based test called Raven's Progressive Matrices. This suggests a common information processing mechanism for both Asperger and autistic individuals.
Researchers found that the increase in intelligence during adolescence can be largely attributed to improvements in mental speed. The study analyzed data from over 6,900 teenagers and discovered that older teens performed better and worked faster on cognitive tests.
A study by Johns Hopkins University psychologists found that preschool children's math skills are strongly correlated with their innate 'number sense' abilities. The researchers tested 200 four-year-olds on various tasks measuring number sense, mathematical ability, and verbal ability. Their findings indicate that children's precision ...
A study by Angela Lee Duckworth found that motivation makes up a larger share of the predictive power of IQ tests for those with below-average scores. The research also showed that ratings of test motivation were equally predictive of adult outcomes as IQ scores.
A study published in Psychological Science found that individuals with different theories of intelligence evaluate their own learning differently. Entity theorists tend to disengage when faced with challenges, while incremental theorists believe more time and effort can lead to better results.
A study published in Psychological Science analyzed test scores from 90 countries, finding a significant correlation between intelligence and economic strength. The researchers discovered that even small increases in cognitive ability among the smartest 5 percent of the population can result in substantial gains in GDP.
The study proposes an 'anytime' intelligence test that can be applied to any subject, system, or level of intelligence, providing a universal evaluation framework for human and artificial intelligence. This breakthrough has significant implications for cognitive sciences and the development of future intelligent systems.
A study by researchers at the University of Washington found that 90% of high-functioning children with autism spectrum disorders showed discrepancies between their IQ score and performance on standardized tests. These children often have above-average academic abilities, suggesting that traditional IQ scores may not be an accurate pre...
A new study reveals that 70-year-olds born in 1930 performed better in cognitive tests than their predecessors born in 1901-02. The study attributed the improvement to better pre- and neonatal care, nutrition, education, and access to advanced technology. Despite this, memory problems remained a predictor of dementia risk.
Researchers found that right-handers favor their dominant hand for positive ideas and non-dominant hand for negative thoughts. Conversely, left-handers use their left hand for positive expressions and right hand for negative ones. These findings suggest people link 'good' with the side of their body they can use most fluently.
Researchers used MRI scans to investigate the neurological basis for performance on vocational guidance tests, finding that gray matter correlates differ between broad and narrow test types. This study provides a basis for investigating whether brain scans can provide unique information for vocational choice.
A study published in the Journal of the International Neuropsychological Society found that lower performance on tests measuring learning and processing speed, as well as symptoms of depression, predicted subsequent cognitive decline in a normal population. The researchers used advanced statistical methodology to analyze multiple varia...
A psychologist's study found that individuals are more accurate in assessing internal traits like anxiety but less so for external traits like intelligence. Friends are better barometers of intellect-related traits, while strangers can spot extroversion. The self has difficulty judging evaluative traits due to perceived stakes.
Research by University of Southern California scientists found a positive association between adolescent fitness and adult cognitive performance. Fit teenage boys scored higher on intelligence tests, logical performance, and mechanical skills, while muscle strength did not have a similar impact.
A study by psychiatrist Szabolcs Kéri found a clear link between neuregulin 1 gene variant and increased creativity. Volunteers with the specific variant scored higher on creativity assessments and reported greater lifetime creative achievements.
A study by Case Western Reserve University Psychologist Joseph Fagan found an association between early ability to process information and IQ scores later in life. Infants who processed new information well at 6- and 12-months-old showed higher levels of academic achievement as young adults.
The NRL's XFC UAS has successfully demonstrated a flight endurance milestone of over six hours, paving the way for long-endurance Intelligence, Surveillance and Reconnaissance (ISR) missions. The fuel cell-powered system greatly extends payload capacity and endurance compared to traditional battery-powered UAS.
Researchers found that rooks can learn to use stones to raise the level of water, bringing a floating worm within reach. The birds demonstrated impressive accuracy and problem-solving skills.
Researchers at Harvard University have demonstrated that individual monkeys within the same species exhibit varying levels of cognitive ability. A study published in PLoS One found that general intelligence, or 'g' factor, accounted for 20% of the variation in performance among cotton-top tamarins.
Researchers created detailed brain maps using MRI and CT scans of 241 patients with cognitive impairment. The study found that verbal comprehension and working memory indices share overlapping brain regions, suggesting they may represent the same type of intelligence.
A study published in PLoS Medicine found that children of older fathers tend to perform poorly in intelligence tests during infancy and early childhood. In contrast, the same children who have older mothers exhibit better cognitive skills. The researchers suggest genetic and social factors as possible explanations for this association.
Researchers used computer artificial intelligence to create new types of pictures and test people's brain performance in visual search experiments. They found that the human brain uses a single mechanism to find targets in pictures, with difficulty levels varying from easy to hard.
A Florida State University professor, Steven I. Pfeiffer, studies gifted children and dispels myths about their needs. He developed a diagnostic test to identify gifted students and advocates for programs to support them.
Researchers have developed a new system of scoring IQ tests for children with fragile X syndrome, a genetic disorder causing intellectual disabilities. The new method provides a more accurate assessment of the long-term learning potential of these children, helping parents and physicians diagnose and treat them more effectively.
A randomized trial found that exclusively breastfed children scored an average of 7.5 points higher on verbal intelligence tests and 2.9 points higher on non-verbal intelligence tests compared to formula-fed children. Teachers also rated these children significantly higher academically in reading and writing.
A study of 136 abandoned Romanian children found that those placed in foster care had significantly better intellectual development than those remaining in institutions. The research suggests that early intervention can help prevent long-term developmental problems.
A study by Dr. Jason Plaks and Kristin Stecher found that individuals with a fixed view of their abilities become anxious and disoriented upon achieving dramatic success, leading to poor performance, whereas those with a malleable view perform better under similar circumstances.
A distinct neurobiology of human intelligence has been identified through a review of brain imaging studies. The Parieto-Frontal Integration Theory suggests that the frontal and parietal lobes are key areas involved in intelligent information processing, with some overlap with attention, memory, and language functions.
A recent study published in Psychological Science found that autistic children excel in fluid intelligence tests, such as the Raven's Progressive Matrices, which assess problem-solving skills and abstract thinking. In contrast, they often struggle with language-based IQ tests like the WISC.
A nationwide study by Ohio State University's Jay Zagorsky found that people with below-average intelligence are just as wealthy as those with higher IQ scores. However, high-IQ individuals tend to earn higher incomes but struggle with financial difficulties such as maxed-out credit cards and missed bill payments.
A new study found that college students experience mind-wandering almost one-third of the time, with individual results varying widely. Higher working memory capacity was linked to better focus during concentrated activities.
A new study published in Psychological Science presents a twist on the conventional understanding of narcissism. Researchers found that narcissists actually view themselves positively in agentic domains, such as status and dominance, but not in communal domains like kindness and emotional intimacy.
A study led by Danielle M. Dick found that variations in the CHRM2 gene can influence performance IQ scores, which measure visual-motor coordination, spatial perception, and abstract problem-solving skills. The researchers used DNA samples from over 2,150 individuals and found cumulative effects of good versus bad genetic variations.