Published in: New directions for program evaluation ; 31

Published in: Applied social research methods series ; 50

Published in: New Directions for Evaluation

Published in: American Journal of Evaluation

Published in: American Journal of Evaluation

Published in: Evaluation and Program Planning

Published in: Evaluation and Program Planning

Published in: Evaluation and Program Planning

Published in: Evaluation Review

Published in: Evaluation Review

Published in: Behavior Research Methods & Instrumentation

Published in: Ethnicity & Health

Published in: Organizational Research Methods

Published in: Medical Decision Making

Published in: Controlled Clinical Trials

Published in: Educational Evaluation and Policy Analysis

Published in: Educational Evaluation and Policy Analysis