Two parents with an IQ of 130 can expect about 6 children before one scores higher than they do.
Caveat: In reality, the number of children required may be a little lower, due to family history. Regression to the mean regresses toward family mean, not overall population mean.
How quickly one processes simple relations might represent what is often called "reasoning speed".
Try out a test of relational processing speed here: https://t.co/07k5aNsA2F
Its original purpose was to track cognitive changes caused by stressors like sleep deprivation.
Are Mensa members smart?
Yes, but not as smart as their standards suggest
The reason is that their scores aren't comparable to those of normal people: they score much higher than expected based on their ability!
Mensans are obsessed with games, invalidating their test results: