Would be interested to see results from modeling BS and real master's degrees separately. Teacher motivation was also unobserved.
No one would expect teachers who want the cheapest & easiest degree possible, & motivated purely by the salary raise, to be transformed.
Crรฉmieux@cremieuxrecueil
Using massive administrative data from North Carolina, researchers looked at the effect of teachers earning Master's degrees on the achievement of their students With this data, they could take out teacher fixed-effects, plausibly allowing causal conclusions They found bupkes
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