Over the last decade, smartphones have become commonplace. Today, 95 percent of American teenagers have a supercomputer in their pocket. Jonathan Haidt, Jean Twenge, and others have brought necessary attention to the likelihood that smartphones and social media are partly to blame for the teenage mental health epidemic gripping the nation. It's…

This paper discusses the procedures best suited for storing, organizing, and using past and present National Assessment of Educational Progress (NAEP) data, as well as procedures and systems used for archiving past and future data, and the quality-control procedures employed to ensure the integrity and responsiveness of the data management system.…