Convergence in the number of selected parameters through elicitation sessions. The number of selected parameters (here we only show those with p
=1) decreases significantly through elicitation sessions, showing the convergence process of experts. The vertical dashed line highlights the significant change occurred after elicitation III, when the number of the selected parameters fell. The results of the last elicitation do not differ substantially from those of the previous session, and results show that both the number (in figure) and the definition of parameters (in Tables 1, 2 and 3) are stable. Thus, those results represent the outcome of the experiment. More details can be found in the text.