The purpose of this varied replication study was to evaluate the effects of a supplemental reading intervention on the beginning reading performance of kindergarten students in a different geographical location and in a different instructional context from the initial randomized trial. A second purpose was to investigate whether students who…

This study compared the effects of 2 supplemental interventions on the beginning reading performance of kindergarteners identified as at risk of reading difficulty. Students (N = 206) were assigned randomly at the classroom level either to an explicit/systematic commercial program or to a school-designed practice intervention taught 30 min per day…

Two curriculum evaluation projects were conducted in response to requests from practitioners interested in determining the quality of commercially developed reading programs. The 1st project, sponsored by 3 school districts in Texas, focused on 5 1st grade reading programs. The 2nd, conducted at the request of junior high, middle-, and high-school…