Conditions for the presence or absence of a bias in treatment effect: some statistical models for Head Start evaluation
By: [by] Burt S. Barnow.
Series: Institute for Research on Poverty. Discussion papers; Discussion papers (University of Wisconsin--Madison. Institute for Research on Poverty) ;; 122.
Publisher: University of Wisconsin--Madison]
Published: 1972
Place of publication: [Madison
Language: eng
Number of pages: 33
Subjects: Compensatory education -- Evaluation.
Notes: Bibliography: leaves 31-33.
"122-72."