Though some of her estimates were null, she found positive test score effects for students attending public schools facing the strongest voucher competition. (educationnext.org)
These findings are consistent because the baseline levels of test scores tend to be lower for the lower income students, so a similar absolute test score effect can be a greater percentage effect. (investinginkids.net)
Of these studies, 11 report positive test score effects among their primary findings. (wifederationforchildren.org)