I scored off the chart but task-forgetful wife is mild?!

I have always figured I have had mild ADHD. While working with a psychiatrist for other issues, he tested me for ADHD and I shockingly scored nearly off the chart. However, my wife who always leaves stuff in disarray, moves from one task to another without fully completing but eventually does, amongst other things, scored mildly. How can this be?!


Looking forward to furer evaluation and treatment plan on Wednesday.  Also enjoying Orlov's book On ADHD/Marriage.