How can you ensure responses to questions are mandatory in Qualtrics?

To ensure that responses to questions are mandatory in Qualtrics, the correct approach is to switch on the 'Force Response' option. Enabling this feature means that respondents cannot proceed to the next question without providing an answer to the question that has been marked as mandatory. This is crucial for collecting complete data, as it guarantees that all necessary responses are captured before participants continue with the survey.

The 'Force Response' setting is particularly effective because it provides a clear mechanism within the survey platform itself, ensuring compliance without relying on external prompts or methods. Consequently, respondents are required to interact directly with the survey, leading to more accurate and comprehensive data collection.

Other options, while potentially helpful in different contexts, do not ensure that a response is mandatory in the same way. For instance, requiring a signature can be important for validation, but it doesn’t enforce answering every question. Limiting choices to one may help obtain a single response but does not guarantee that the respondent will engage with the question if they choose to skip it. Similarly, adding visual prompts can help guide respondents but does not enforce mandatory participation in answering the question. Hence, the 'Force Response' option directly addresses the need for mandatory responses effectively.