Which feature allows you to pre-fill survey response data from an external source?

The feature that allows you to pre-fill survey response data from an external source is the data import function. This feature enables you to incorporate existing data into your survey, making it possible to personalize the survey experience for respondents based on previously collected information. By using data import, you can automatically fill out certain responses in a survey, which enhances the efficiency of the survey process and improves the quality of the data collected.

Utilizing this capability can be particularly useful in scenarios where you have a list of participants or customers, along with specific details about them, which can serve as pre-filled responses. This can help increase response rates as participants may be more inclined to complete a survey that already acknowledges their prior interactions or data.

The other options relate to different functions within the Qualtrics platform. Data export is focused on taking survey data out of the system for analysis or reporting, while survey flow pertains to the structure and organization of the survey questions and logic. Randomization refers to the method of presenting questions or answer choices in a randomized order to minimize bias, but it does not involve pre-filling responses from external data sources. Thus, data import is the key feature for pre-filling survey responses effectively.