Fix That Fits: What is the Right Evaluation for Social Innovation?
Developmental Evaluation offers an alternative approach to measuring the impact of social innovations
Does microcredit reduce poverty? Do laptops in schools improve student learning? If you believe in Randomized Control Trials (RCTs) as the only way to evaluate an intervention, the answers to the questions are: No and No.In 2009, researchers from the Poverty Action Lab at the Massachusetts Institute of Technology (MIT) worked with an Indian microfinance firm to ensure that 52 randomly chosen slums in the city of Hyderabad were given access to microfinance, while 52 other slums, which were equally suitable and where the lender was also keen to expand, were denied it. The study found that there was no effect on average household consumption (a proxy for income), at least within 12-to-18 months of the experiment.Earlier this year, a group of researchers from the Inter-American Development Bank (IDB) conducted a randomised evaluation of the One Laptop Per Child (OLPC) programme, using data collected after 15 months of implementation in 319 primary schools in rural Peru. They found that the children receiving laptop computers under the OLPC programme did not show any improvement in mathematics or reading.Seems like a straightforward vindication of the power of RCTs to uphold the truth and prevent wastage of social sector resources? Unfortunately, the reality is a bit more complicated.In the microcredit study for instance, although overall consumption did not go up, people in the slums of Hyderabad who had access to microcredit were more likely to cut down on tobacco and alcohol in favour of more durable goods such as pushcarts or cooking pans (that helped further their business).Consequently, the MIT researchers discovered that as many as one-third more businesses had opened in slums which had a microcredit branch, leading one to believe that while there was no immediate effect, there would certainly be an impact on poverty (and health) in the long run.Similarly, in the Peru study, the IDB researchers noted that while there wasn't a measurable improvement in test scores, there was a positive and significant change in the development of children’s cognitive skills, which is often a more highly valued outcome.More importantly, the study’s findings shed light on the challenging context of Peru’s education system, specifically around the lack of adequate resources and poor teacher-training. For instance, 62 percent of Peruvian teachers did not have elementary level reading comprehension, and 92 percent lacked acceptable proficiency in mathematics.In both these cases, just following the headline finding would have led to the demise of two potentially promising interventions. Increasingly, we are coming up against the limitations of conventional evaluation methods being applied to new and innovative approaches.Giving slum-dwellers access to microcredit and rural children access to laptops are very different programmes, but they have something in common: They are both “social innovations”. In other words, they are novel solutions to a social problem that are potentially more effective, efficient, sustainable, or just, than present solutions.Social innovations often seek to address problems that are both complicated (with many moving parts) and complex (including and interdependence of variables, multiple factors interacting at once, iterative and non-linear feedback loops, and rapid change in dynamic contexts). They often share the following traits:
- The pathways to results and sometimes even the results themselves are unpredictable and emergent, such as the result around slum-dwellers using more of their income for durable goods.
- When many different independent individuals, organizations, and institutions affect a problem and its solution, it can be difficult to produce specific outcomes at a pre-determined time (e.g. test scores at the end of the year).
- Social innovators do not have enough control over the entire scope of factors or players to orchestrate outcomes. Often, the context may be the critical factor (as with the poorly prepared teachers of Peru) rather than the intervention itself.
- What is developing or emerging as the innovation takes shape?
- What variations in effects are we seeing?
- What do the initial results reveal about expected progress?
- What seems to be working and not working?
- How is the larger system or environment responding to the innovation?
- How should the innovation be adapted in response to changing circumstances?
- How can the project adapt to the context in ways that are within the project’s control?
First Published: Nov 28, 2012, 08:45
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