Skip Navigation

What Works Clearinghouse


Research

One study reviewed by the WWC investigated the effects of Progress in Mathematics © 2006. This study (Beck Evaluation & Testing Associates, 2005) was a randomized controlled trial that met WWC evidence standards.

The Beck Evaluation & Testing Associates (2005) study included 186 first-grade students in eight classrooms across four schools. Three schools were located in New York, and one school in Pennsylvania. Each school identified two first grade classrooms for the study: one classroom was randomly assigned to the intervention group and the other assigned to the comparison group. Thus there were a total of four classrooms in the intervention group and four classrooms in the comparison group. The intervention classrooms used a pre-publication comparison of the Progress in Mathematics © 2006 program. The comparison classrooms used the earlier and substantively different © 2000 version of Progress in Mathematics.

Extent of Evidence

The WWC categorizes the extent of evidence in each domain as small or medium to large (see the What Works Clearinghouse Extent of Evidence Categorization Scheme). The extent of evidence takes into account the number of studies and the total sample size across the studies that met WWC evidence standards with or without reservations. 4

The WWC considers the extent of evidence for Progress in Mathematics © 2006 to be small for math achievement.

4 The Extent of Evidence Categorization was developed to tell readers how much evidence was used to determine the intervention rating, focusing on the number and size of studies. Additional factors associated with a related concept, external validity, such as students' demographics and the types of settings in which studies took place, are not taken into account for the categorization.

PO Box 2393
Princeton, NJ 08543-2393
Phone: 1-866-503-6114