Evidence review: Transformational change
Evidence review: Transformational change
This evidence review will combine two different evidence gap maps into one learning exercise on transformational change.
We will indirectly review the evidence on transformational change in two sectors where there has been demonstrable progress: in energy and in behavioural change in public health. The review will use causal evidence to assess how lessons about transformational change in these two sectors may inform broader climate change mitigation and adaptation investments. The evidence gap maps will inform the scope of a subsequent systematic review.
For the purpose of our review, we operationalize transformational change in the following manner:
A large depth of change: Transformational change requires a sizeable change. For the purpose of this review, we measure depth as the effect size of an intervention on outcomes.
A large scale of change: Even with large effect size, and intervention only becomes an important contributor of transformational change if it is targeting many beneficiaries or covering a large geographical area.
Sustained change: For a change to be transformational, it must persist over time.
Key documents
Approach paper: A review of the attributes of transformational change in the energy and public health sectors
July 2020
The approach paper and approach brief detail the contours of the evidence review. We review the evidence on transformational change in two sectors where there has been demonstrable progress: in energy and in behavioural change in public health. The review uses causal evidence to assess how lessons about transformational change in these two sectors may inform broader climate change mitigation and adaptation investments.
Systematic review: Scale, depth and duration - Examples of transformational change in the energy and public health sectors
May 2022
The final report and final brief offer examples of transformational change in the energy and public health sectors at scale, with depth and duration. We identify lessons on transformational change from these two sectors that are relevant to policymakers.