I've scored pretty high on the "inattentive scale", but got only a few points on the "hyperactive" one. I was told that both scales must be high to be diagnosed with ADHD.
According to DSM‑5‑TR and ICD-11, ADHD is subdivided into three presentations: predominantly inattentive, predominantly hyperactive-impulsive, and combined.
My understanding is that this is not the case, that ADD (without the hyperactive part) used to be considered a separate diagnosis but this is no longer the case, and one of the scales qualifies.
I am not a proffessional though, so take it with a grain of salt, but it might be worth double checking just in case.