This time they decided to see if willpower isn’t as strong as people think. What if behavioral cues can change with the environment. Before they gave a four year old a marshmallow they would send either an “unreliable adult show up and and promise to come back to the room with art supplies or a reliable adult to show up in the room and actually come back with what they promised.” (Source 2) “Only one out of fourteen kids that encountered the unreliable adult actually waited the full fifteen minutes for the marshmallow.” (Source 2) The kids must have believed that the adults were lying since they didn’t come back with what they promised to begin with. “However more than half the kids who encountered the reliable adult made it through the fifteen minutes.” (Source