• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

Part: III Appendixes > Getting the Right Number of Participants

Getting the Right Number of Participants

You do not need many participants to get process data. If you are in the early stages of design, five or six people will be fine, especially for paper prototypes. You will need more people—often about 10 to 20 participants—in the later stages of design to evaluate the site. However, you will need to increase these numbers if you have a large and diverse audience to cover, or if your Web site is very large. Getting so many people right at the outset might seem expensive, but consider how much trouble this investment will save you later when you have created a more useful and usable Web site for your customers.

Getting bottom-line data requires a lot more people. Ten to 20 people can provide initial data, but most tasks will still have a large amount of variability. Section A.5, Analyzing the Data, will give more details about the relationship between the number of people and variability in the data.


PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint