Since the last visit, I tried to lose weight or control my weight because...
1.	I knew that I could win money for losing weight.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
2.	I felt that it would improve my health.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
3.	My spouse, family, friends, or doctor would be upset if I didn't.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
4.	Being overweight makes it hard to do many things.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
5.	I worried that I would get in trouble with the research staff if I didn't.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
6.	I felt that it would improve my physical appearance.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
7.	I wanted to get as much money as possible at the end of the program.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
8.	I find weight loss to be an exciting, personal challenge.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
9.	Others on my Shape Up team and/or in my weight loss group would be upset if I didn't.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
Since the last visit, I counted calories, fat grams, and exercise minutes because.
10.	I knew that I would win money each week if I did.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
11.	I felt that it helped me stay motivated.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
12.	My spouse, family, friends, or doctor would be upset if I didn't.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
13.	I worried that I would get in trouble with the research staff if I didn't.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
14.	I believe that it helped me stay focused on my weight loss efforts.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
15.	I wanted to get as much money as possible at the end of the program.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
16.	I found that it helped me stay under my calorie goal and exercise more.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
17.	I found it rewarding to track and view my personal progress.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true
18.	Others on my Shape Up team and/or in my weight loss group would be upset if I didn't.	0	1	2	3	4	5	6
		Not at all true true or N/A			Somewhat true			Very true

Scoring:

Intrinsic motivation = mean of items 2, 4, 6, 8, 11, 14, 16, 17

Extrinsic motivation = mean of items 1, 3, 5, 7, 9, 10, 12, 13, 15, 18