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by barry-cotter
3243 days ago
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Teaching credentials do not effect teacher quality. Whether at primary or secondary level the best predictor is years of teaching experience, with measures of subject matter expertise (a Master's degree in the subject they're teaching, not education) and measures of general intelligence (IQ tests or close enough like GRE or SAT) also having large positive effects. The additional effects of more experience end at around six years experience. Teaching qualifications have an effect on teacher performance that is not reliably distinguishable from zero. |
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