Learning More from Social Experiments: Evolving Analytic Approaches, edited by Howard S. Bloom, New York: Russell Sage, 2005, 246 pp., $35 hardcover, $19.95 paperback.. Place Randomized Trials: Experimental Tests of Public Policy, edited by Robert Boruch, Thousand Oaks, CA: Sage, 2005, 291 pp., $47.95 hardcover, $36.95 paperback.

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