Dr. Colleen Russo Johnson is the Chief Scientist and co-founder of The OK Company, makers of the OK Play app. As a developmental psychologist with an expertise in children's media and technology, Colleen serves as an adjunct professor at Ryerson University and co-founder of the Ryerson Children’s Media Lab. She is also a senior scholar for UCLA’s Center for Scholars and Storytellers, research advisor to Sinking Ship Entertainment, and co-author of the bestselling children's book, Dino Dana: Dino Field Guide. Colleen is passionate about applying best practices from science into tech and media products to enhance the lives of families everywhere. She holds a PhD from Vanderbilt University as a National Science Foundation graduate fellow. She now lives in Toronto with her husband, two dogs, and two young children.