What must grid content in a survey contain?

Grid content in a survey is designed to collect responses for questions that are related but ask for different data points about the same set of subjects. For effective data collection and analysis, it is essential that the Q-Fields in a grid contain the same answer set. This uniformity ensures that respondents are evaluating the same scale or options for every item being measured in that grid, facilitating consistent comparisons across different items.

When all Q-Fields share the same answer set, it simplifies the response process for participants, reduces confusion, and enhances the reliability of the collected data. This format is particularly useful in understanding how respondents feel about various aspects of a single concept or experience, as it allows for straightforward analysis of patterns and trends within their responses.

The other choices introduce variability or optionality that detracts from the primary goal of grid questions, which is to enable a cohesive set of responses that can yield meaningful insights.