Table 1.

Sample interview and focus group questions

Response scenarios
Receiving an alert about an overdose event	You receive an alert on the app at 9 Pm, when you’re home with family or friends. How would you respond?
	If you were the one responding to an overdose using the app, what kind of information would you want to see about an overdosing victim? Would you want to see a picture of the person?
Responding to the overdose location	You arrive at the location and it appears to be an abandoned building, such as a shooting gallery. What would you do?
	Would you find it uncomfortable if more than one person showed up to the scene because they were alerted through the app? How about if 911 also showed up to the scene?
General functionality
Sharing personal information	What kind of information about yourself would you be comfortable sharing with others in the app?
	Do you have any concerns about your geographic location being tracked at all times by the app?
Barriers and facilitators to engagement with app	Do you have any concerns about 911 automatically being called—either if you were the responder or the person signaling the call?
	Do you think you’d be more or less interested in using the app if it involved some kind of incentives, for example, receive points for responding to an overdose?