Override Questions Library logic in a study

Questions Library keeps your question wording and answers the same across studies. Sometimes the logic needs to be different in one study, even when the wording doesn't. Overriding logic lets you change the logic in a single study while the Library item and every other study that uses it stay exactly as they are.

There are two main ways to use it:

Blocks: change the skip logic and display logic for the questions inside a Library block.
Qualifying questions: change which answers qualify or disqualify participants for a Library question with qualifying logic (Radio buttons, Checkboxes and Dropdown questions).

Only account owners and admins can override logic in a study.

Override skip and display logic in a block

Skip logic and display logic need several questions to work together, so in the Questions Library they live on blocks. When you add a block to a study, its logic comes with it and is locked by default.

To change it for one study:

Open the study's questions and click the block itself (not a question inside it).
In the right sidebar, under Override logic, click Override library logic so the toggle turns on.
Click any question inside the block. Skip logic, Display logic and Qualifying logic (for question types that support it) are now unlocked for that question.
Edit the logic as usual. Your changes are saved to this study only.

Questions you've changed show the override icon in the question list, and an Override active for the block badge in the sidebar.

Example: a block skips its follow-up questions for people who answer "No" to the first question. In a study where you need everyone's answers to the follow-ups, you can turn that skip off without touching the block in the Library.

Override qualifying logic on a Library question

This applies to Radio buttons, Checkboxes and Dropdown questions saved on their own in the Questions Library, since these are the question types that support qualifying logic. Questions inside a block are covered by the block override above.

A question from the Library can qualify different people in different studies. For example, the same "How often do you shop online?" question can qualify frequent shoppers in one study and people who rarely shop online in another. This works well for any standard screening question where the wording stays the same but the people you're looking for change from study to study.

Step 1: Allow overrides in the Questions Library

Someone who manages your Questions Library does this once per question:

Open the question in the Questions Library.
In the Logic section, turn on Qualifying logic and set the default qualifying answers.
Turn on Override allowed. It's off by default, and it can only be turned on when qualifying logic is on.

Step 2: Change the qualifying logic in a study

Open the study's questions and click the Library question.
Set each answer to Qualify, Neutral or Disqualify, or turn Qualifying logic on or off for the whole question.

Answers you've changed show the override icon with the tooltip Overridden from library default. The sidebar shows a Qualifying logic override active badge. Answers you haven't changed keep following the Library, so if the Library default for one of them changes later, this study picks up the change.

The question wording and answers can't be edited in the study. Only the qualifying logic can be changed.

If Override allowed is off for a question, its qualifying logic is locked in the study, with a tip pointing you to the Questions Library.

Go back to the Library logic

To undo your changes for a question, select it and click Revert under the override badge. The question goes back to the Library logic for this study.

Good to know

Turning off a block override: if you turn off Override library logic on a block, the study goes back to using the Library logic for that block. Your changes are kept and come back if you turn the override on again.
Turning off Override allowed: if someone turns off Override allowed on a Library question later, studies that already changed its qualifying logic keep their changes. Studies that haven't changed it can't start a new override.
Duplicating a study: when you duplicate a study, its logic overrides are copied to the new study.
Other studies are never affected: an override only changes the study you make it in.