Another place we find children to test is the university’s preschools, where the kids are even WEIRDer than those who visit our lab. (The edamame kid went to preschool here.) Monthly tuition costs between $1,500 and $2,000, and the parents are highly educated, university-affiliated faculty, staff, researchers, or students. These kids know the drill with grad students’ studies: When a new person comes to class and asks if you want to “play a game,” that person is a researcher. While other children play “House” or “Doctor,” these Berkeley kids have been known to play a game called “Research.” One child holds a clipboard and asks other children to “play a game” while the child observes them and pretends to jot down notes. Some of these children have told me about their international travels, and several of the 3-year-olds have told me they can read.