Attached Scale Response Question Not Allowing Subjects to Select Response (case 6472)

[jkzuerch]

The attached math question that is set up as a scale response has five possible answers. However, when the participant clicks on any of them, this message pops up "try again". Do you know you why it is not possible to select an answer and move on?

For this math problem, it is okay if the participant gets the answer wrong, so it is meant to be set up so the person can click on any of the five answers to proceed. Also, I placed this questionnaire within an experiment file and it still did not work.

Thank you in advance for any advice,

Joanna