4. Results
4.1. Pilot research
The pilot research with a sample of 30 students from both groups was contacted. The assumptions of the pilot research were the same as
it were described in the experimental procedure. The assessment was based on the answers that each group gave the total of the seven
questions. The questions that were answered by the pupils from both groups were checked for their validity and reliability. Specifically,
the indicator Cronbach’s Alpha as well as the correlation of Pearson (Total Item Correlation), between all the questions were calculated.
In the case of the multimedia animated cartoons, the indicator Cronbach’s Alpha was found equal to 0.716 and according to the values
of the Total Item Correlation, two questions were found to be marginally suitable and five questions perfectly suitable. In the case with
the text sheets, the indicator Cronbach’s Alpha was found equal to 0.645 and according to the values of the Total Item Correlation, one
question was considered to be inadequate, one question was marginally suitable (this one coincides with one from the two questions that
were found to be marginally suitable in the case of the animated cartoons) and five questions were perfectly suitable. It was obvious that
three questions needed corrections.