Random Assessments
Participants received four pseudorandomly timed survey prompts. The random assessments occurred over a 12-hour window divided into four 3-hour blocks with 1 assessment occurring in each block. The first block began 2 hours after the participant’s usual wake time. Participants received an initial notification and 2 reminder notifications to complete each random assessment. Surveys had to be initiated within 15 minutes of the initial notification and completed within 5 minutes of initiation. On average, the random assessments took 1.1 (SD 0.7) minutes to complete.