The document summarizes a study on young adults' drinking behavior that was conducted using mobile surveys. Researchers sent daily text messages with links to short surveys about participants' drinking that day to gather real-time data over a week. 186 young adults ages 18-24 completed the full study. Key findings included that Friday night was the most popular night for drinking, most had 5 or fewer drinks per night, and lager was the most common drink. The mobile method engaged participants, provided quick results, and gathered richer behavioral data than traditional surveys.