Irrefutable evidence /

Irrefutable evidence /

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Bibliographic Details
Imprint:[New York, N.Y.] : The Foundation, c1989.
Description:1 videocassette (20 min.) : sd., col. ; 1/2 in.
Language:English
Series:Into the working world
Subject:
Evaluation research (Social action programs)
Evaluation research (Social action programs)
Format: Video cassette Video
URL for this record:http://pi.lib.uchicago.edu/1001/cat/bib/5710627
Hidden Bibliographic Details
Other authors / contributors:Daniel, Peggy.
Rockefeller Foundation.
Notes:VHS.
Summary:Researchers explain the benefits of random assignment as a technique for obtaining concrete evidence of a social program's success or failure.

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