Which feature should be used to show or hide a set of questions based on specific conditions?

Branch logic is the feature that should be used to show or hide a set of questions based on specific conditions. This functionality allows researchers to create a more tailored survey experience by directing respondents to different question paths depending on their previous answers or specific criteria they meet. By using branch logic, you can ensure that only relevant questions are asked, optimizing the data collection process and enhancing respondent engagement.

Branch logic operates by setting conditional statements that dictate which questions appear based on responses. This can significantly reduce survey fatigue and improve the quality of data by making sure that only relevant sections are displayed to respondents.

The other options serve different purposes: quota settings help manage the sample size for certain respondent groups; skip logic allows the survey to jump over certain questions but does not necessarily allow for the dynamic showing or hiding of multiple questions; and randomization is used to vary question order or response options to mitigate bias but does not control visibility based on conditions.