# CMP2 Student Outcome Study 2010

- Sep 1, 2010

Horizon Research, Inc. conducted a quasi-experimental matched- group longitudinal study to compare student outcomes in schools using Connected Mathematics, 2nd Edition (CMP2) to schools using conventional textbook programs. Student achievement was measured by state mathematics assessments and the Balanced Assessment in Mathematics (BAM). The study also examined four attitudinal outcomes: (1) confidence in studying mathematics; (2) beliefs about the usefulness of mathematics; (3) intrinsic motivation to study mathematics; and (4) enjoyment of mathematics.

Results of the study provide evidence that students experiencing CMP2 perform just as well, if not better, than students receiving mathematics instruction from conventional textbooks. On state assessments, students experiencing CMP2 performed similarly to students in the comparison schools. In both sets of schools, the achievement gap between black and white students widened over the three years, though the gap grew less rapidly in CMP2 schools than it did in comparison schools. The pattern of achievement over time on the BAM was statistically the same in both CMP2 and comparison schools. Student scores on each attitudinal outcome decreased over time in both sets of schools, though the rate of decline on the beliefs about the usefulness of mathematics scale decreased more slowly in CMP2 schools.