Varsha Venugopal

Yes.

So we have some monitoring and evaluation we are conducting already, which gives us increased confidence in our work, both on the SMS and the ambassador side.

And yes, if somebody else were to run a randomized trial on some intervention that broadly sounds like ours and comes out with some results which are not aligned with ours,

it's then harder to control some of that communications around it.

So at some point, we would want to run a randomized trial on our own programs to, A, of course, increase our confidence.

We are fairly confident it's working, but also to ensure that we are on the right track before we scale it up to a much larger scale.

Yes, that is exactly our thinking for the moment.

We definitely have a lot of monitoring and evaluation systems in place now and are putting in more frameworks, but they are not of the quality of a large scale randomized trial.

So that's something we want to do much later, maybe around the three to five year mark.

Right now, it's more about, are you getting the messages?

You know, we had more than 8% of our 500 people we asked saying that they probably or definitely wouldn't have taken their kids for immunization if they hadn't got our messages.

So that gives us some degree of confidence.

So I think it's more about iterations to make our program more effective, but also to get some direct user feedback that's useful at this stage.

But to roll out a whole large-scale randomized trial is something we would be looking at at a later date.

So that's what we're actually looking at now.

Are there ways we can get to having higher confidence in our impact without ruling out a large scale randomized trial?

And exactly, is there some kind of before and after methodology or a difference in difference method where we look at a neighboring set of villages which didn't have ambassadors or SMS reminders?

And what does that mean?

The challenge is if we are relying on administrative data in a state where it's

It may not be of as high quality as elsewhere.