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

Detalles Bibliográficos
Autor principal:	Langbein, Laura Irwin (Autor)
Formato:	Libro
Lenguaje:	inglés
Publicado:	Santa Monica, California Goodyear Pub. [1980]
Colección:	The Goodyear public policy analysis and management series
Materias:	Social sciences > Statistical methods. Evaluation research (Social action programs)