Difficulty level: Difficult What does the functionality do? You use this functionality especially, when a participant, after selecting an answer...

In order to round numbers and amounts to 0, 1 or 2 decimal places, you can use the round(var, x)...

Suppose you want to display only two of the following four questions to each survey participant, without it being clear...

Difficulty level: Difficult What does the functionality do? Suppose you want to set the time for answering a survey and...