> There is no research to suggest that a standardized test would improve student outcomes or enhance teacher pedagogy. From https://www.nber.org/papers/w14021

> There is no research to suggest that a standardized test would improve student outcomes or enhance teacher pedagogy. From https://www.nber.org/papers/w14021 https://www.nber.org/papers/w14021 , > By estimating the effect of teacher attributes using a value-added model, the analyses in this paper predict that observable qualifications of teachers resulted in average improved achievement for students in the poorest decile of schools of .03 standard deviations, about half the difference between being taught by a first year teacher and a more experienced teacher. If limited to teachers who are in the first or second year of teaching, where changes in qualifications are greatest, the gain equals two-thirds of the first-year experience effect. > our results suggest that recruiting teachers with stronger observed qualifications, e.g., math SAT scores or certification status, could substantially improve student achievement.