Full disclosure, I am a parent that is on the hawkish side of having my DS evaluated. A neuropsych is the gold standard for and ADHD diagnosis. If the reason you are hesitant to get a neuropsych is financial, you should ask for a neuropsych at district expense. Some districts are harder than others to provide a neuropsych, but I have been successful at getting IEEs for my sons at district expense through impartial hearings. I was also able to choose the popular PsyD in my area. $6500/per evaluation x 3 DS is beyond my pay grade.
Feel free to PM me, if you need help.
