Thinking of all the times you ate these kinds of foods or drinks, how often did you eat or drink them for the following reasons? Please circle the answer that best describes you.^*

1. I eat these foods to forget things that I am worrying abouta
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
2. I eat these foods because my friends want me to eat/drink themd
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
3. I eat these foods because it helps me enjoy myself when I’m at a partyc
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
4. I eat these foods because it helps me when I feel down or nervousa
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
5. I eat these foods to enjoy time with friendsc
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
6. I eat these foods to cheer up when I am in a bad mooda
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
7. I eat these foods because I like the feeling I get when I eat themb
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
8. I eat these foods to so that others won’t joke about me not eating or drinking these foodsd
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
9. I eat these foods because it’s excitingb
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
10. I eat these foods to get a super good feeling insideb
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
11. I eat these foods because it makes social gatherings more func
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
12. I eat these foods to fit in with a group I liked
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
13. I eat these foods because it gives me a pleasant feelingb
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
14. I eat these foods because it improves parties and celebrationsc
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
16. I eat these foods to celebrate a special occasion with friendsc
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
17. I eat these foods to forget about my problemsa
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
18. I eat these foods because it’s funb
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
19. I eat these foods to be likedd**
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always
20. I eat these foods so I won’t feel left outd
Never/Almost never	Some of the time	Half of the time	Most of the time	Almost always/Always

^*The responses are coded 1 through 5, respectively. Note: There is no item #15 as analysis of a similar item in the adult PEMS was also omitted due to poor factor loading (Burgess et al., 2014).

^**This item (#19) loaded poorly on the Conformity motive so was excluded from analysis in this study. Future use of the K-PEMS should change the item to read: “I eat these foods so that others will like me”.

^a,b,c,dDenote items comprising the 4 motives: a = coping; b = reward enhancement; c = social; d = conformity.