Volume 29, Number 1, March 2020

GUEST EDITORIAL
Introduction to Special Issue:  ADHD Research in a  Canadian Context
Maggie E. Toplak, Jeannette LeGris

RESEARCH ARTICLES
Examining the Impact of Motivation on Working Memory Training in Youth With ADHD
Mahsa Sadeghi, Tara McAuley, Sol Sandberg

Neurochemical Correlates of Executive Function in Children with Attention-Deficit/Hyperactivity Disorder
Tasmia Hai,  Hanna Duffy, Jean-Francois Lemay,  Rose Swansburg, Emma A. Climie,  Frank P. MacMaster

Predicting Use of Medications for Children with   ADHD: The Contribution of Parent Social Cognitions
Ainsley Boudreau, Janet W.T. Mah

PSYCHOPHARMACOLOGY
The Effects of Extended-release Stimulant Medication   on Sleep in Children with ADHD
Penny V. Corkum,  Esmot Ara Begum,  Benjamin Rusak, Malgorzata Rajda, Sarah Shea,  Marilyn MacPherson, Tracey Williams,  Kathleen Spurr,  Fiona Davidson

Therapeutic Response to Methylphenidate in ADHD:  Role of Child and Observer
Gender Venkat Bhat, Sarojini M. Sengupta, Natalie Grizenko, Ridha Joober

REVIEWER ACKNOWLEDGEMENTS