Before the treatment,
Mathematics efficacy scale proposed by
Qanbari (2001) was administered a pretest on
the both groups. The control group was taught
using conventional teaching method by teacher
while the experimental group was taught
through cooperative learning methodology by
the researcher. At the end of ten sessions of
treatment, the previously employed
Mathematics efficacy scale was readministered
on the both group as posttest to
test the effect of the treatment on the students’
performance.