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U.S. Department of Health and Human Services
The Effects of Sample Attrition on Estimates of Channelings Impacts for an Early Sample
Peter A. Mossel and Randall S. Brown
Mathematica Policy Research, Inc.
July 1984
PDF Version
U.S. Department of Health and Human Services
The Comparability of Treatment and Control Groups at Randomization
Randall S. Brown and Margaret Harrigan
Mathematica Policy Research, Inc.
October 27, 1983
PDF Version (30 PDF pages)