Discussion and conclusions
Based on the result of the test statistics run to the findings of this study, the reliability of pretest was
proved because the correlation was significant, r = .90, P .33. It was safe to accept the null hypothesis that there was not any
statistically significant difference between the two groups. In other words, the two groups were
homogeneous and the findings of the posttest would be a function of the treatment. After treatment,
to establish the intra-rater reliability of posttest used in this research study, the correlation was
significant, r = .83, P