why selection bias is the most powerful force in education (via @Pocket) #longreads https://fredrikdeboer.com/2017/03/29/why-selection-bias-is-the-most-powerful-force-in-education/ …
10:57 PM - 13 Aug 2017
0 replies
2 retweets
3 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.