John List

In a past life, I worked in the White House advising the president on environmental and resource issues within economics.

A harsh lesson that I learned was you have to evaluate the effects of public policy as opposed to its intentions.

A harsh lesson that I learned was you have to evaluate the effects of public policy as opposed to its intentions.

A harsh lesson that I learned was you have to evaluate the effects of public policy as opposed to its intentions.

When you step back and look at the amount of policies that we put in place that don't work...

When you step back and look at the amount of policies that we put in place that don't work...

When you step back and look at the amount of policies that we put in place that don't work...

So down in Chicago Heights, I ran a series of interventions, and one of the more powerful interventions was called the Parent Academy. That was a program that brought in parents every few weeks, and we taught them everything.

So down in Chicago Heights, I ran a series of interventions, and one of the more powerful interventions was called the Parent Academy. That was a program that brought in parents every few weeks, and we taught them everything.

So down in Chicago Heights, I ran a series of interventions, and one of the more powerful interventions was called the Parent Academy. That was a program that brought in parents every few weeks, and we taught them everything.

What are the best mechanisms and approaches that they can use with their three-, four-, and five-year-old children to push both their cognitive skills and their executive function skills, things like self-control? What we found was within three to six months, we can move a child in very short order to have very strong cognitive test scores and very strong executive function skills.

What are the best mechanisms and approaches that they can use with their three-, four-, and five-year-old children to push both their cognitive skills and their executive function skills, things like self-control? What we found was within three to six months, we can move a child in very short order to have very strong cognitive test scores and very strong executive function skills.

What are the best mechanisms and approaches that they can use with their three-, four-, and five-year-old children to push both their cognitive skills and their executive function skills, things like self-control? What we found was within three to six months, we can move a child in very short order to have very strong cognitive test scores and very strong executive function skills.

So, of course, we're very optimistic after getting this type of result, and we want the whole world to now do parent academies. The UK approaches us and said, we want to roll it out across London and the boroughs around London. What we found is that it failed miserably. It wasn't that the program was bad. It failed miserably because no parents actually signed up.

So, of course, we're very optimistic after getting this type of result, and we want the whole world to now do parent academies. The UK approaches us and said, we want to roll it out across London and the boroughs around London. What we found is that it failed miserably. It wasn't that the program was bad. It failed miserably because no parents actually signed up.

So, of course, we're very optimistic after getting this type of result, and we want the whole world to now do parent academies. The UK approaches us and said, we want to roll it out across London and the boroughs around London. What we found is that it failed miserably. It wasn't that the program was bad. It failed miserably because no parents actually signed up.

So if you want your program to work at higher levels, you have to figure out how to get the right people and all the people, of course, into the program.

So if you want your program to work at higher levels, you have to figure out how to get the right people and all the people, of course, into the program.

So if you want your program to work at higher levels, you have to figure out how to get the right people and all the people, of course, into the program.

The main problem is we just don't understand the science of scaling.