Surveys allow you to collect responses from your members on various questions and as part of the process they're prompted to follow.
Example of a survey:
To create your own survey go to the Surveys menu option and click the New Survey button. You'll be prompted to enter a survey name, description and questions. You can add as many questions as you'd like to the survey and each question can be one of the following types:
Dropdown boxes prompt members to select only one of several options that are viewable only when clicking the dropdown arrow.
Checboxes allow members to select more than one option.
Radio Buttons allow members to select only one option (two minimum) and all options are viewable (unlike the Dropdown Box).
Text Field prompts members for a short response.
Text Area prompts members for a lengthy response.
Once you save your survey you need to specify in your campaign settings (Edit button at the top of your Admin Console) that you want to include a survey on your campaign using the Display Survey dropdown on the camaign's first tab.
Finally, you can see all responses to your survey on the Survey Answers report.
Also see:
I can't delete my survey question