I was lucky to find the book Helen Parkhurst wrote in 1962: "Growing Pains".
(Doubleday & Company, Inc. - Garden City, New York)
I've found it at Amazone and this copy came from the Los Angeles Public Library.
Growing Pains is the outgrowth of a series of radio programs of the same name, built around tape recordings of interviews with teen agers.
This is a statement I like very much.