I downloaded the revised version of the slider file to create visual analog scales for a questionnaire. Everything is great, but I was wondering if there some code that could prevent participants from advancing from one slider to the next until they physically move the slider?

The way the slider is set up now, the slider is always on 50, and it is possible for participants to just click "continue" straight through the entire questionnaire, answering "50" to every VAS question. Is there a way to not make the continue button show up until after they have moved the slider?