This study examined the collateral effects of WiggleWorks, an interactive literacy program, in two settings: a cohort study comparing random samples of grade 1-2 students (n=452) before and after software implementation and a longitudinal sample tracing students from Kindergarten to grade 1 (n=126). WiggleWorks contributed to greater student use…

The Follow Through experience is beginning to provide compelling evidence bearing upon important policy issues in compensatory education. This evidence, coming as it does from a naturalistic quasi-experiment, cannot draw its plausibility from the conventional statistical inference appropriate to probabilistically-constructed true experiments. The…