You can use cluster analysis to get a pictorial representation of the resultant groupings. Pay special attention to items about which a consensus does not exist. Make sure that all participants are representative of the eventual users of the structure you are designing. Try to get as many participants as convenient, and at least six. However, be aware that the more participants you have, the more data you will need to analyze.
People vary widely in the amount of time they take to sort cards.
There are many variations on the basic technique. By making the cards slightly larger, you can add some simple questions. It is possible to have people collaborate in grouping the items. However, this runs the risk of reaching a consensus that is not an accurate reflection of any one individual's perceptions. Preparing for a Card Sort Ensure that each term is as clear and unambiguous as possible Ensure that you have included all the items you need to categorize Shuffle or randomize cards prior to each participant session Script a set of instructions so that all participants have the same understanding of the process Leave participants alone while they are sorting the cards to avoid placing them under unnecessary time pressure, but make sure they can contact you easily to ask questions or when they have finished Provide additional blank cards for people to write group names Provide rubber bands so that people can gather groups of cards together.