by Alfred O. Ludwig, Benjamin J. Murawski, and Somers H. Sturgis. 119 pp, $5, Cambridge, Mass: Harvard University Press, 1969.
In the review published in JAMA, Nov 3, 1969, pp 909-910, the word "unaware," in line 13 was incorrect. The reviewer wrote "aware," and the negative was introduced by typographical error. The sentence should read: "The researchers have a clear and valid methodological approach, and, aware of the pitfalls and complexities, recognize that their research falls short of yielding the correlates they seek."