Table 2.

Branching sequence for the activity type ecological momentary assessment (EMA) item.

INITIAL ITEM
Item	Item wording	Response options (bold-face initiates first branch)
Activity type	What have you been doing between (start time) and (stop time)?	Reading or doing homework	Using technology (TV/phone)	Eating/drinking	Sports/exercising	Going somewhere	Hanging out	Other
FIRST BRANCH SEQUENCE
Item	Item wording	Response options (bold-face initiates second branch)
Using technology (TV, Phone)	While using technology (TV, phone), were you:	Playing video games	Talking	Texting	Using the internet	Watching TV/shows movies	Other
Going somewhere	While going somewhere, were you:	Walking	Biking	Riding in a bus	Riding the metro/train	Riding in a car/taxi	Other (skateboarding, etc.)
Other (1/2)	What was this other activity?	Doing chores/cooking	Showering/bathing	Sleeping	Working/part-time job	Getting ready for something	Shopping	Getting dressed
Other (2/2)	What was this other activity?	Class/school	Playing with children	Playing catch	Waiting	Doing something else
SECOND BRANCH SEQUENCE
Item	Item wording	Response options
Doing something else		Write-in