3 ms·
Could the correlation in grades within a social group be caused by smart kids being more likely to hang out with other smart kids, and vice versa?
by pgt 13y ago
Could the correlation in grades within a social group be caused by smart kids being more likely to hang out with other smart kids, and vice versa?
- mathattack 13y agoAnd being into the same topics, watching the same movies, reading the same books...