Who is E. D. Starbuck from Writings, 1902-1910 and what is their importance?

E.D. Starbuck does a great deal of work in California on the psychology of religion. He discovers that conversion in evangelical circles runs nearly parallel with normal adolescent growth into a larger spiritual life around the ages of 14-17. These adolescents experience imperfection, brooding, depression, etc. and then achieve a happy relief in an objectivity occurring through an adjustment of faculties to a wider outlook.