Oracle In this edition of: DID YOU KNOW YOU COULD DO THIS IN C1?
In most other systems, Radio Buttons and Drop-down question types are one selection ONLY.
In Clinical One, Radio Buttons are one selection only by default. Drop-down and Check-boxes question types are multi-select by default.
You can make Drop-down and Check-boxes question types one selection, using configured rules (see image below). Happy Study Building!