The 20 terms identifying facilitator characteristics in the list are undefined. We are not sure about what meanings different people attributed to each of these items. It is not defensible to pretend everyone was thinking of the same thing when they selected the top three. If we had defined each term with behavioral indicators, we would have received more reliable results. The context was not defined.
Effective facilitation requires flexible adjustments to suit the situation.
For example, an effective facilitator working in Peoria may fail miserably in Pretoria. A group of engineers may not like the same facilitation styles as a group of social workers. If we had specified the context in which the facilitator is operating, we would have received more reliable results. It's difficult for the human brain to compare and select among 20 items. We could have reduced this effect by giving people different, randomized lists.