Les Parrott
Alonzo Leslie Parrott is an American author of Christian self-help books, a professor of psychology at Northwest University, and an ordained Nazarene minister. He is the creator of the SYMBIS Assessment, and founder of the Parrott Institute for Healthy Relationships at Olivet Nazarene University. He and his wife, Leslie Parrott, are the founders of the Center for Relationship Development at Seattle Pacific University where they taught courses out of the Marriage and Family Therapy and psychology departments.