Effectiveness

Findings

The WWC review of elementary school mathematics curriculum-based interventions addresses student outcomes in mathematics achievement.

Mathematics achievement. Resendez and Manley (2005) reported no statistically significant effects of the Scott Foresman–Addison Wesley Elementary Mathematics program on either the TerraNova Math Total Score or TerraNova Math Computation Score. The average effect across the two outcome measures was not large enough to be considered substantively important according to WWC criteria. Based on this study finding, the WWC rated the effect of Scott Foresman–Addison Wesley Elementary Mathematics on math achievement as indeterminate.

Rating of effectiveness

The WWC rates interventions as positive, potentially positive, mixed, no discernible effects, potentially negative, or negative. The rating of effectiveness takes into account four factors: the quality of the research design, the statistical significance of the findings (as calculated by the WWC³ ), the size of the difference between participants in the intervention condition and the comparison condition, and the consistency in findings across studies (see the WWC Intervention Rating Scheme). The WWC found Scott Foresman-Addison Wesley Elementary Mathematics to have no discernible effects on mathematics achievement.