Informing Big Decisions: Analytical Generalizability for Large-Scale Evaluations

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Bibliographic Details
Title: Informing Big Decisions: Analytical Generalizability for Large-Scale Evaluations
Language: English
Authors: Estelle Raimondo, Diana Stanescu (ORCID 0009-0004-9985-8716), Santiago Tellez Cañas (ORCID 0000-0001-9536-3709)
Source: Evaluation Review. 2026 50(2):279-311.
Availability: SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: https://sagepub.com
Peer Reviewed: Y
Page Count: 33
Publication Date: 2026
Document Type: Journal Articles
Reports - Descriptive
Descriptors: Generalization, Evaluation Methods, Measurement, Research Problems, Pattern Recognition, Research Design, Institutional Research
DOI: 10.1177/0193841X251380336
ISSN: 0193-841X
1552-3926
Abstract: This article reflects on how the Independent Evaluation Group (IEG) of the World Bank Group grapples with the issue of generalizability in conducting large-scale and complex development evaluations. It discusses a practical framework IEG uses to meet three needs: methodological, institutional, and didactic. IEG evaluations are aimed at informing significant organizational or strategic decisions encompassing broad scopes, assessing extensive portfolios of interventions by the organization across diverse contexts and spanning multiple years. These evaluations are inherently multimethod and need to bridge various logics of generalization. They seek to influence decision-makers, such as boards of directors or senior managerial teams, with the objective of guiding pivotal moments in the organization's trajectory; ensuring accountability for learning, results, or budget expenditures; and synthesizing substantial evidence to distill key success or failure factors for future strategic planning. The defensibility of the methodological scaffolding is paramount to the credibility of the evaluations. The article discusses the challenges inherent in such evaluations, including the need to generate findings that are valid at multiple levels of analysis and the reliance on multitiered mixed-methods approaches. It examines the use of a practical framework to bridge methodological principles and real-world challenges involved in evaluation to inform the design and implementation of large-scale evaluations. The framework is illustrated with examples from IEG's evaluations, and the article explores how practitioners and researchers can apply the framework in other settings to enhance the generalizability of their findings.
Abstractor: As Provided
Entry Date: 2026
Accession Number: EJ1499422
Database: ERIC
Description
Abstract:This article reflects on how the Independent Evaluation Group (IEG) of the World Bank Group grapples with the issue of generalizability in conducting large-scale and complex development evaluations. It discusses a practical framework IEG uses to meet three needs: methodological, institutional, and didactic. IEG evaluations are aimed at informing significant organizational or strategic decisions encompassing broad scopes, assessing extensive portfolios of interventions by the organization across diverse contexts and spanning multiple years. These evaluations are inherently multimethod and need to bridge various logics of generalization. They seek to influence decision-makers, such as boards of directors or senior managerial teams, with the objective of guiding pivotal moments in the organization's trajectory; ensuring accountability for learning, results, or budget expenditures; and synthesizing substantial evidence to distill key success or failure factors for future strategic planning. The defensibility of the methodological scaffolding is paramount to the credibility of the evaluations. The article discusses the challenges inherent in such evaluations, including the need to generate findings that are valid at multiple levels of analysis and the reliance on multitiered mixed-methods approaches. It examines the use of a practical framework to bridge methodological principles and real-world challenges involved in evaluation to inform the design and implementation of large-scale evaluations. The framework is illustrated with examples from IEG's evaluations, and the article explores how practitioners and researchers can apply the framework in other settings to enhance the generalizability of their findings.
ISSN:0193-841X
1552-3926
DOI:10.1177/0193841X251380336