Discovering whether programs work a guide to statistical methods for program evaluation

Detalles Bibliográficos
Autor Principal:	Langbein, Laura Irwin
Formato:	Libro
Idioma:	inglés
Publicado:	Glenview, Il. Scott, Foresman 1980.
Series:	The Scott, Foresman public policy analysis and management series
Subjects:	Social sciences > Statistical methods. Evaluation research (Social action programs)