Savant Syndrome: Types, Autism Link, IQ and Famous Cases
Savant syndrome is a rare island of exceptional skill alongside a disability. Types, the autism link, real IQ results and famous savants, all sourced.
14 min read
Understanding IQ
What IQ is, how IQ tests work, the history and science of intelligence measurement.
25 articles
Are IQ Tests Biased? What the Evidence Actually Shows
“Bias” covers at least six different psychometric questions, and the research answers them differently. Measurement invariance, differential item functioning and predictive bias explained — without a blanket verdict.
11 min read
Elon Musk's IQ: What's Actually Verified
"155" is everywhere online — but no test, examiner, or date backs it. Here's what's actually documented, and why estimates range from 100 to 160.
6 min read
IQ Test With Certificate: What "Certified" Actually Means
Almost any site can put your name on a PDF and call it "official." Here's what actually separates a real certificate from a printable one.
5 min read
Montreal Cognitive Assessment (MoCA)
The MoCA screens for mild cognitive impairment, not IQ — and it's sensitive enough that 4 in 10 people without dementia can score below "normal."
7 min read
Sex Differences in Intelligence: What the Evidence Shows
On general intelligence, the average difference between sexes is negligible. The real, replicated finding is about variability — not average IQ.
4 min read
Machine Intelligence Test: How AI Is Measured
From the Turing Test to AI scoring 140+ on Mensa — how machine intelligence testing actually works, and why the headline numbers mislead.
6 min read
Neuromyths in Education: The Brain Myths Teachers Believe
Learning styles, the 10% brain, left- vs right-brained learners — surveyed teachers endorse these at strikingly high rates. What the evidence says.
5 min read
The g Factor: What General Intelligence Actually Is
Every cognitive test correlates with every other. g is the model extracted from that pattern — not a substance in the brain. What the evidence shows.
9 min read