Levinson view midlife as a crisis, believing that the middle-aged adult is suspended between the past and the future, trying to cope with this gap that threatens life's continuity. George Vaillant has a different view. Vaillant's study-called the "Grant Study" involved men who were in their early thirties and their late forties who initially had been interviewed as undergraduates at Harvard University. He concludes that just as adolescence is a time for defecting parental flaws and discovering the truth about childhood, the forties are a decade of reassessing and the recording the truth about the adolescent and adulthood years. However, whereas Levinson sees midlife as a crisis, Vaillant maintains that only a minority of adult experience a midlife crisis.