Randy Pausch
Pausch delivered his "Last Lecture", titled "Really Achieving Your Childhood Dreams", at CMU on September 18, 2007. He gave an abridged version of his speech on "The Oprah Winfrey Show" in October 2007. The talk was modeled after an ongoing series of lectures where top academics are asked to think deeply about what matters to them, and then give a hypothetical "final talk", with a topic such as "what wisdom would you try to impart to the world if you knew it was your last chance?" Before speaking, Pausch received a long standing ovation from a large crowd of over 400 colleagues and students. When he motioned them to sit down, saying, "Make me earn it", someone in the audience shouted back, "You did!"
Head Start (program)
In 2014, CCR Analytics published the results of their study of 49,467 children assessed in the 2012-2013 school year from 81 Head Start programs throughout the state of California (more than 50% of the entire California Head Start population). Participation in the study was open to all California Head Start programs who used the DRDP-PS 2010 assessment tool. The study found that providing two years of Head Start to a child increases the probability by between 13% to 86% that the child will meet age appropriate expectations. Regression discontinuity design was used to measure program impact without denying a control group the opportunity to attend Head Start. The analysis compared three-year-olds enrolled in Head Start to four-year-olds who returned to Head Start for their second year. This also eliminated the issue of selection bias because both groups chose to attend Head Start as three-year-olds.