Preventing multiple clicks in a radio button

Hi Mahua,

I'd recommend modifying your triggers that adjusts the variable to happen when the learner selects the Ok button (your file has that button as Button 1, it's a good practice to rename those so it's easier to keep track of them when creating your triggers) instead of when they select the radio buttons. This will allow them to select the buttons multiple times but those clicks won't add up. You'll need a condition on the trigger to add the value if the state of the appropriate radio button is selected. 

Trigger order is really important here. You'll want to make sure that those triggers are listed before the triggers to jump to different slides so Storyline has a chance to adjust the variable as needed. 

Hope that helps! Please let us know if you have any questions.