It is best practice to only use a Boolean to trigger a JumpTo Element when the Boolean is set to True (or 'Yes'). This is because the default for a Boolean Element is False ('No'), and so if the Boolean Element and JumpTo Element are on the same screen, the JumpTo Element will be triggered to jump right away (as False is automatically registered). 


It is better practice to use a Picklist Element to determine the outcome of a JumpTo Element in such scenarios, as there is optionally no default for Picklists.