Related Experiment Video
Updated: Aug 7, 2025

Problem-Solving Before Instruction PS-I: A Protocol for Assessment and Intervention in Students with Different Abilities
Published on: September 11, 2021
From projects to systems: Being explicit about assumptions in systems-level theories of change
Shyamashree Das1, Kultar Singh2
1Infectious Diseases Cluster, India Country Office, Bill & Melinda Gates Foundation, India.
Abstract:
Projects and programs have long been the primary instrument for achieving development goals in low- and middle-income countries. One criticism of the project-focused approach is its failure to focus on broader system-level changes. This paper explores how Mayne's COM-B Theory of Change model can enhance the evaluation of how projects and system-level investments can lead to system-level changes, especially in a development context. Using a real-world example, we offer several evaluation questions to initiate thinking about what might be needed to extend the ideas in the COM-B theory of change to facilitate better interrogation of systems-level change efforts.
Related Concept Videos
Classification of Systems-I
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Control Systems
At the heart...
Social Cognitive Perspective on Personality
Social Exchange Theory
Assumptions of Survival Analysis
Purposive Learning

