No main effect of choice on parent reported child outcomes was found. (link.springer.com)
The achievement effects of choice programs after just one or two years may well turn out to be misleading indicators of the longer - term effects on test scores and attainment. (educationnext.org)
In summary, looking at the simple relationship between choice schools and student achievement, I found a positive effect of choice schools, consistent with popular claims made in the headlines. (commons.trincoll.edu)