Open the QC dialog
Select an element and press Shift + Q + C on your keyboard to bring up the QC dialog.
QC a single element
Single elements have three pre-set QC options. These checks are usually applied to numeric questions where you want to flag and cap outlier responses.
QC checks are stored in a special element
After you add a QC check, it creates a new element called "$flags". Every time you add a new QC check, it's added to this element. 3% of respondents are flagged as Q1 > 50 and those that do not meet the criteria are shown as [NA].
QC a group
There are more QC options for a group of questions, for instance there is a preset to check for straight-liners.
Select "All children are equal (aka straightline)" to flag respondents that entered the same answer for all questions in a group.
Remove flagged respondents
Create your own custom flags
You can define a condition to create custom flags. Q3 asks how many Condition Y patients are on a gamma antagonist, and S8 asks how many Condition Y patients the respondent manages.
You can set a custom condition that flags respondents that entered a greater value for Q3 than S8. Custom conditions can reference any element, you can even create the QC in an element, and not include it in the condition.
|>=||Greater than or equal to|
|<=||Less than or equal to|
|===||Equal to, and the same data type (Identical)|