Media type: Book Title: Advances in quasi-experimental design and analysis Contributor: Trochim, William M. K. [Hrsg.] imprint: San Francisco, Calif.: Jossey-Bass, 1986 Published in: New directions for program evaluation ; 31 The Jossey Bass higher education and social and behavioral sciences series Extent: 113 S. Language: English ISBN: 1555429904 RVK notation: MR 2300 : Experiment Origination: Footnote: