The Marshmallow Test revisited: How children’s self-control has changed in the past 50 years. October 6, 2017 by Jack Lewis 0 Comments Washington Post. (Sept. 2017) Learn more. Posted in:In the Media See more Prev:Middle school pilots restorative justice techniques. Back: All Posts Next:For Parents: Teaching kids how to be resilient. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website