Effects of cooperative learning on students’
mathematics achievement: To determine the effects of
cooperative learning on students’ achievement, an
analysis of students’ pre and post test mean scores was
carried out. Table 2 shows the pre-test scores of the
experimental and the control group.
The results indicate that the mean score for
experimental group was 50.34 with a standard
deviation of 10.92 and that of control group was 47.68
with a standard deviation of 11.18. The results also
indicate that the difference between the achievement
mean scores for experimental and control groups t(80)
= 0.281 is not significant at the alpha level of 0.05.
This, therefore, means that the experimental and
control groups were at the same level of achievement
at the start of the study.