 Hyman then conducted a similar study three years later, in 1998, to distinguish if there were certain personality types that were more likely to create false childhood memories.In this "Individual Differences and the Creation of False Childhood Memories" study, Hyman and his partner Billings once again sent questionnaires to the parents of psychology students asking them to describe significant life events.The student was then presented with several true memories and one researcher-created false memory.