This study explored the effect of depth of learning (as measured in hours) on creativity, curiosity, persistence and self-efficacy. We engaged ~900 parents and 900 students across 21 sites in Washington, Chicago, Los Angeles, New York, Alabama, Virginia and the United Arab Emirates, in 5-week (10-hr) Curiosity Machine programs. Iridescent trained partners to implement the programs. Thus, this analysis was also trying to establish a baseline to measure any loss in impact from scaling our programs and moving to a “train-the-trainer” model. We analyzed 769 surveys out of which 126 were paired. On