In this section, the results of the experiment are analysed. Figure 5 depicts an overview of the search
result relevance scores (i.e., the average of the scores) along with the standard deviation and the
Cronbach's alpha scores. As can be seen, the Cronbach's alpha scores are above 0,7 for all the evaluations
with an average 0,8. A Cronbach's alpha score above 0,7 indicates that the results of the evaluation is
reliable.