The effect of cognitive ability as indicated by a vocabulary test score on earnings by teachers and selected other occupations is estimated. Although test scores increase earnings for non-teacher occupations, the effect of test scores on teacher earnings is zero.
Source: “Teacher quality and earnings” from Economics Letters, Volume 99, Issue 2, May 2008, Pages 307-309
As far as teaching well, I’ve heard such great things about this book that it’s on my to-read list and I’m not a teacher.
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