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.

Description
Physical Description:	1 videocassette (20 min.) : sd., col. ; 1/2 in.
Format:	VHS.