How to prepare it
vedi [definitive](selecting partecipants), [Rugg 1997]
First of all we need to prepare the cards with the items: a card for each item. We need to evaluate the appropriateness of the labels, that have to be understandable; it could therefore be necessary to perform a preliminary labelling analysis. It could be useful to have some boxes where the partecipant can group the cards; the number of the boxes should be the number of maximum categories we wish to create; if we already have decided the labels for the groups (closed card sorting) we should label the boxes.
