The prospective mathematics teachers' scores in the T1 test, which was used as both
the pre- and post-test, were examined to determine whether there was a statistically
significant difference. Shapiro-Wilk test (ppre-test>.05; ppost-test>.05), Q-Q plot, and box and
whisker plot, showed that quantitative data obtained as a result of both pre-test and post-test
had normal distribution. Accordingly, the results of Paired Samples t-test, which is a
parametric test used for identifying whether there is a significant difference between the tests,
are given in Table 2.