I think they’ve already debunked I think they’ve already debunked the marshmallow test conducted at Stanford; the biggest issue was that the guinea pigs were the children of well to do Stanford professors — the central question to ask yourself is this:
How much of these kids, planning for the future or whatever How much of these kids, planning for the future or whatever is the result of indoctrination from their educated Ph.D Stanford professor parents vs some fake test?
My personal take is that the marshmallow test my personal take is that the marshmallow test is just a signal that educated kids by educated parents have a time preference to invest in the future — it ain’t no silly test!