For your RQ, you need two variables. If you compare

For your RQ, you need two variables.  If you compare those with ADHD to a control group you would have a grouping IV.  See if you can then fit your RQ into this format:

Is there a difference in DV based on level of IV?  

The scale you select to measure attitudes must be a known scale from literature (with psychometric properties).  See if you can find one you would like to use and go ahead and tell us what it is and called.