Public program evaluation a statistical guide по Langbein, Laura Irwin

Public program evaluation a statistical guide по Langbein, Laura Irwin

Discovering whether programs work a guide to statistical methods for program evaluation по Langbein, Laura Irwin

Discovering whether programs work a guide to statistical methods for program evaluation по Langbein, Laura Irwin

Discovering whether programs work a guide to statistical methods for program evaluation по Langbein, Laura Irwin

Ecological inference по Langbein, Laura Irwin

Ecological inference по Langbein, Laura Irwin, Lichtman, Allan J.

Ecological inference по Langbein, Laura Irwin

Ecological inference по Langbein, Laura Irwin