between-group

You are assuming that whatever variation exists in power causing genes has huge in-group variance relative to between-group variance.

This finding is robust for both between-group comparison of high- versus low-reputational-risk accounts and within-group comparison across engagement types (i.e., likes vs.

The amounts for between-group variation are probably similar to the amounts for within-group variation, but there are reasons why they might not be exactly the same.

You're looking for between-group differences, nothing more.

Yet, although IQ differences between individuals have been shown to have a large hereditary component, it does not follow that between-group differences in average IQ have a genetic basis.

In-group std is greater than between-group std.

> You’re looking for between-group differences Yes!

The mean percent change in LDL cholesterol levels at week 24 was −57.1% (95% confidence interval [CI], −61.8 to −52.5) with enlicitide and 3.0% (95% CI, 0.9 to 5.1) with placebo, representing an adjusted between-group difference of −55.8 percentage points (95% CI, −60.9 to −50.7; P<0.001).

If two groups differed by, say, 10 points in average IQ (2/3 of a standard deviation), the respective distributions would overlap quite a bit (more in-group than between-group variation), but the fraction of people with IQ above some threshold (e.g., >140) would be radically different.

How do you measure "between-group" variation?