According to “partial regression plots” in the linear regression course of applied statistics, this meta-regression aimed to determine the ES of stimulant pharmacotherapy (MPH and lisdexamfetamine), non-stimulant pharmacotherapy (ATX and alpha-2 agonists), parental behavior therapy(PBT), combination therapy(psychostimulant plus PBT), and alternative/complementary interventions, after adjusting confounding factors of ADHD treatment type, study type, age, type of symptom scale, and publication year. Here, PSMA2 is linked to attention deficit-hyperactivity disorder.