When to group questions?

It's good to group survey questions by the theme of category for the sake of logical order, for example, you might group questions by their subject area. Different types of question groups can be used in a survey. 

When a new group is created, its questions are shown as cards as a default setting. That means that each question is presented to a respondent one at a time. 

When many questions are wanted to present to a respondent at the same time, select List as a group type. 

The scales are made identical to each question in a group for all slider, range, and 2D types when Z-scored group option is used. The identical scale in a question group makes it possible to compare different questions to each other. This feature is particularly handy when analyzing standardized reports.

HINT: Learn how to create question groups here.