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Using longitudinal data from the state of Florida, this study examines the effects of various types of education and training on the ability of teachers to promote student achievement. It suggests that teacher training generally has little influence on productivity. One exception is that content-focused teacher professional development is positively associated with productivity in middle and high school math. In addition, more experienced teachers appear more effective in teaching elementary and middle school reading. There is no evidence that either pre-service (undergraduate) training or the scholastic aptitude of teachers influences their ability to increase student achievement.
Citation: Douglas Harris, Tim Sass (2007). Teacher Training, Teacher Quality and Student Achievement. CALDER Working Paper No. 3
In this paper, the authors use a ten-year span of longitudinal data from North Carolina to explore a range of questions related to the relationship between teacher characteristics and credentials, on the one hand, and student achievement on the other. They conclude that a teacher's experience, test scores and regular licensure all have positive effects on student achievement, with larger effects for math than for reading. Taken together the various teacher credentials exhibit quite large effects on math achievement, whether compared to the effects of changes in class size or to the socio-economics characteristics of students.
Citation: Charles Clotfelter, Helen Ladd, Jacob Vigdor (2007). How and Why Do Teacher Credentials Matter for Student Achievement?. CALDER Working Paper No. 2
The central question for this study is how the quality of the teachers and principals in high poverty schools in North Carolina compares to that in the schools serving more advantaged students. A related question is why these differences emerge. The consistency of the patterns across many measures of qualifications for both teachers and principals leaves no doubt that students in the high poverty schools are served by school personnel with lower qualifications than those in the lower poverty schools. Moreover, in many cases the differences are large. Additional evidence documents that the differences largely reflect predictable outcomes of the labor market for teachers and principals.
Citation: Charles Clotfelter, Helen Ladd, Jacob Vigdor, Justin Wheeler (2007). High Poverty Schools and the Distribution of Teachers and Principals. CALDER Working Paper No. 1