2.5 Statistical analysis
The main statistical method used in this empirical study was descriptive
statistics. The data obtained from the various questionnaires were
processed, summarized, and presented appropriately in order to draw
meaningful conclusions from the data. With the help of descriptive
statistics, it was possible to characterize the sample and to describe
and compare the different groups of experts and non-experts. For this
purpose, various comparisons of means were carried out, e.g., between
experts and non-experts, with the help of the T-test for independent
samples. A normal distribution of data was tested and assumed.
Additionally, the standard deviation was also considered and included in
the comparison. The Data analysis was conducted with the statistical
software IBM SPSS (Statistical Package for Social Sciences) and
Microsoft Excel program.