Project ROOTS

This study used a randomized controlled trial design to investigate the ROOTS curriculum, a 50-lesson kindergarten mathematics<br>intervention. Ten ROOTS-eligible students per classroom (n = 60) were randomly assigned to one of three conditions:<br>a ROOTS five-student group, a ROOTS two-student group, and a no-treatment control group. Two primary research questions<br>were investigated as part of this study: What was the overall impact of the treatment (the ROOTS intervention) as compared<br>with the control (business as usual)? Was there a differential impact on student outcomes between the two treatment conditions<br>(two- vs. five-student group)? Initial analyses for the first research question indicated a significant impact on three<br>outcomes and positive but nonsignificant impacts on three additional measures. Results for the second research question,<br>comparing the two- and five-student groups, indicated negligible and nonsignificant differences. Implications for practice are<br>discussed.<br><br>