Journal
On reasoning
Short, careful reads on intelligence, testing and how we think. No hype, no brain-training promises.
What an IQ score can (and can't) tell you
An IQ score is a position, not a measurement of worth: where your reasoning sat among a norm group on one day, with a margin of error.
Fluid and crystallised: two kinds of intelligence
Solving a problem you've never seen and using what you already know are different abilities. Good tests keep them apart.
How to prepare for a timed reasoning test
You can't cram for a reasoning test, but you can make sure the score reflects you and not a bad night's sleep.
One puzzle a month
A new reasoning puzzle and a short read on how we think, once a month.