Rob Wiblin

It also is very intuitive that would have this effect of getting more parents to vaccinate their kids.

Yeah, it's not a wacky intervention that you would have guessed wouldn't work.

And so maybe it's a waste of your attention or a waste of money to be going and doing all that much monitoring and evaluation.

Maybe you should kick that can down the road and wait for another couple of years before going into that.

Interesting.

Okay, so the idea is you'll do the monitoring evaluation later on once you're like trying to grow more.

Yeah, I guess there's a slightly cheap way for you to potentially measure impact, which is a little bit harder at the testing phase when you're only reaching a small number of people.

Because if you're actually growing a lot and you say there's like a thousand villages on your list that you eventually want to reach, but you can't reach them all right away, then you can do a before and after comparison.

where you say, well, we got to this one first, and then we looked at what happened the month after and the month before.

And then with the next one, we reached them a month later, after and before.

Normally, this just before and after comparison isn't completely persuasive, isn't super persuasive, because there could have been some broader trend, some other thing that happened around that same time that might have changed vaccination rates that wasn't you.

But if you have enough villages, if you have a large enough sample, then it's very likely that any such broader changes are cancelling out.

And you also get this diversification across different time periods where you release the program.

So

Simply kind of doing this before and after comparison.

Yeah, if you're large enough, could give you a very good measure of your impact.

Fantastic.

Okay.

Yeah.

What's another potential roadblock to achieving your full potential?