Once your discussion guide is ready, you’ll need to decide who you’re asking the questions to and how. If you’ll be conducting interviews, start with a random sample of 10-12 individuals within your target audience.
If you’ll be sending out a survey, calculating how many people you’ll need to send the survey to is a bit more tedious. First, it depends on the margin of error you’re willing to accept. Because this data will be used to influence your organisation’s identity and communications and not to conduct super scientific research, a 5-10% margin of error is fine. Using the chart below, identify how many total people are within your population, then see how many respondents you’ll need based on the margin of error you choose.
For example, if you have 3,000 contacts in your email database that fit the description of your target audience, and if you’re satisfied with a 10% margin of error, then you’ll need 100 survey responses. However, take into account that not everyone to whom you send the survey will respond. If your organisation typically experiences a 20% open rate of emails, then assume you’ll need to send the survey to 500 individuals to receive 100 responses.