Table 1.

Summary of Inclusion Criteria and Ecological Momentary Assessment Report Details by Study

	Study
	1	2	3
Inclusion criteria
Age (years)	15 to 19	14 to 24	21 to 67
Drinking frequency, i.e., occasions per week in past 30 days	2+	2+	4+
Frequency of heavy drinking, i.e., occasions per week in past 30 days; heavy drinking defined as >6/>4 drinks for men/women	None required	None required	2+
Interest in reducing alcohol use	Not explicitly listed in inclusion criteria	Yes	Not explicitly listed in inclusion criteria
Able to read simple English, i.e., to respond to questions on the device	Yes	Yes	Yes
Ecological Momentary Assessment random prompt report details
Delivery schedule	Once in each 3-hr block per day stopped when in “sleep” mode, and not overlapping with drink reports	Once in each 3-hr block per day stopped when in “sleep” mode, and not overlapping with drink reports	Scheduled as 5 on average per day, stopped when in “sleep” mode, and not overlapping with drink reports
Delay maximum	20 min	20 min	20 min
Suspension maximum	7 hr	7 hr	2 hr
Maximum time to start a response (or delay) before marked as misseda	2 min	2 min	2 min

Note.

^aOnce an audible prompt was delivered, participants must have acknowledged it within 2 min, or it was marked as a missed report. They could choose to either delay their response for up to 20 minutes or complete the report immediately. Once a response was initiated, participants could complete the report at their own pace; however, reports were designed to be brief and take less than 90 seconds.