From Silicon Valley executives swearing by morning runs to schools adding PE to boost test scores, the idea that exercise makes you smarter has become almost gospel. But what does the neuroscience actually show? The answer is encouraging — but more nuanced than the headlines suggest. Key Takeaway: Regular aerobic …
Few topics in psychology generate more heat and less light than sex differences in cognitive abilities. Claims range from “men and women are cognitively identical” to “there are fundamental, biologically determined differences that explain occupational disparities.” The data support neither extreme. Here is what large-scale research actually shows — including …
Every time you take a standardized test — an IQ assessment, a college entrance exam, a professional certification — the questions have been calibrated using sophisticated statistical models that most test-takers never learn about. Item Response Theory (IRT) is the mathematical framework behind virtually all modern psychological and educational testing, …
Approximately 10% of babies worldwide are born prematurely — before 37 weeks of gestation. For parents of preterm infants, particularly those born very early, a pressing question is: how will prematurity affect my child’s cognitive development? Research spanning decades and tens of thousands of preterm-born individuals now provides a clear, …
The belief that firstborn children are smarter than their younger siblings is one of the most persistent ideas in folk psychology. Parents joke about it, media repeats it, and surprisingly, the research largely supports it — though the effect is far smaller than most people assume and the reasons behind …
If you’ve received a score of 130, 140, or 150 on an IQ test — or if you’re simply curious about what these numbers represent — you’ve likely found that the internet offers more mythology than explanation. These scores place individuals well above average, but what that means practically, statistically, …
The nine months of pregnancy represent the most rapid and consequential period of brain development in human life. By birth, a baby’s brain contains roughly 100 billion neurons, nearly all of which were produced during gestation. The nutritional environment during this window has lasting effects on the architecture, connectivity, and …
IQ tests are among the most scrutinized instruments in all of psychology. Critics argue they are culturally biased, too narrow to capture real intelligence, and used to justify inequality. Defenders argue they are the most rigorously validated psychological measures in existence. Both camps have valid points — and understanding where …
The Wechsler Adult Intelligence Scale is the most widely used IQ test in the world. When Pearson released the WAIS-V in 2024 — the first major revision since the WAIS-IV appeared in 2008 — it introduced significant structural changes that affect how cognitive ability is measured, scored, and interpreted. Whether …
Few ideas in educational psychology have achieved the cultural penetration of Carol Dweck’s growth mindset theory. The concept — that believing intelligence is malleable rather than fixed leads to greater academic achievement — has been adopted by school districts, corporate training programs, and parenting guides worldwide. But as the idea …
