You're able to make questions within the check-in anonymous if there is a particular question that is of a sensitive nature.
To do this, you:
1) Create the question within the questions screen
2) Select the box that says 'anonymous'
This means that when employees provide a response to that particular question, it will not show that the response has come from them.
Employees will be made aware that the questions is anonymous so that they can provide their response accordingly.