Program Evaluation's Path to Greater Policy Relevance: Learning From Rossi's Iron Laws.

Area of Science:

• Social Science Research Methodology
• Program Evaluation
• Policy Analysis

Background:

• Peter R. Rossi's 1987 "Iron Law of Evaluation" critiqued social program evaluations for lacking policy relevance.
• Evaluations often fail to build a robust knowledge base for effective social engineering and large-scale program development.
• A key limitation is the insufficient focus on study qualities like external validity, generalizability, applicability, and transferability.

Purpose of the Study:

• To explore and apply the concept of external validity in social program evaluation.
• To address Rossi's concerns about evaluation's limited contribution to understanding and solving social problems.
• To enhance the policy relevance and practical impact of social program evaluations.

Main Methods:

• This special issue features five papers examining the practical application of external validity principles.
• The methodologies likely involve case studies, theoretical discussions, and empirical analyses of social programs.
• Focus is placed on identifying and applying study characteristics that promote accumulated learning and knowledge transfer.

Main Results:

• The contributing papers explore how to improve the generalizability and applicability of evaluation findings.
• The research aims to bridge the gap between evaluation research and actionable policy insights.
• Findings are expected to offer strategies for strengthening the knowledge base required for successful social interventions.

Conclusions:

• Enhancing external validity is crucial for making social program evaluations more policy-relevant and impactful.
• Accumulated learning from evaluations can be better leveraged for social engineering and problem-solving.
• This special issue provides insights into advancing evaluation practices to better inform social policy and interventions.