Understanding Your Users: A Practical Guide to User Research Methods (Interactive Technologies) by Kathy Baxter & Catherine Courage & Kelly Caine

Author:Kathy Baxter & Catherine Courage & Kelly Caine [Baxter, Kathy]
Language: eng
Format: epub
ISBN: 9780128006092
Publisher: Elsevier Science
Published: 2015-05-19T18:30:00+00:00

Number of Respondents

You must be sure that you can invite enough people from your desired user population (e.g., current users, potential users) to get a statistically significant response. That means that you can be confident that the results you observe are not the product of chance. If your sample is too small, the data you collect cannot be extrapolated to your entire population. If you cannot increase your sample size, do not despair. At that point, it becomes a feedback form. A feedback form does not offer everyone in your population an equal chance of being selected to provide feedback (e.g., only the people on your mailing list are contacted, it is posted on your website under “Contact Us” and only people who visit there will see it and have the opportunity to complete it). As a result, it does not necessarily represent your entire population. For example, it may represent only people that are fans and signed up for your mailing list or customers that are particularly angry about your customer service and seek out a way to contact you. On the other hand, you do not need (nor want!) to collect responses from everyone in your population. That would be a census and is not necessary to understand your population.

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