Table 9. Results of univariate tests for differences in PEBs before and after delivery of the teaching intervention and for interactions between pre- and post-test scores and sex of the students.

Dimension df F P
Before and after intervention Certainty 21 12.07 0.002
Simplicity 21 0.39 0.537
Source 21 2.54 0.126
Justification 21 1.61 0.218
Interaction Test*Sex Certainty 21 6.23 0.021
Simplicity 21 1.83 0.190
Source 21 2.24 0.150
Justification 21 0.11 0.741