The minimum number of completes required for statistically relevant sample size is 400. You can adjust your total sample size at any point while drafting your survey by navigating back to the Target Market page.

Learn more about sample size in the Lighthouse Academy!

Sample Size for Panel Surveys

1. At the bottom of the Target Market page, drag the Total Sample size (N): slider to order between 50 and 10,000 completes, or type your desired number in the text box to the right of the slider.

Sample Size for List Surveys

1. At the bottom of the Target Market page, drag the Number of Completes slider to order between 1 and 5,000 completes, or type your desired number in the text box to the right of the slider.
2. To order additional completes up to 10,000, type directly into the text box. Additional completes are charged per completion.

If you're not sure how many respondents your survey requires, see How many completes do I need?