Table 2.

Percentage distribution of respondents’ characteristics by study and experimental treatments^a

	Study 1 (TESS)b			Study 2 (RTI)c
	Response Option Ordering		Total	Response Option Ordering		Total
	Excellent to Poor	Poor to Excellent		Excellent to Poor	Poor to Excellent
Sociodemographic characteristics
Gender
Female	50	50	50	48	50	49
Male	50	50	50	52	50	51
Race/Ethnicity
White	73	74	74	81	77	79
Black	9	8	8	8	10	9
Other race	3	3	3	2	4	3
Hispanic	10	11	11	7	6	7
Two or more races	5	4	4	2	3	3
Marital status
Married	55	55	55	60	52	57
Not married	45	45	45	40	48	43
Education
Less than high school	9	8	9	7	6	7
High school	28	28	28	27	27	27
Some college	32	31	31	31	28	30
Bachelor’s degree or more	31	33	32	35	39	37
Age
18–29	17	17	17	19	18	18
30–44	24	25	25	23	21	22
45–59	28	27	28	29	28	29
60 and older	32	31	31	30	33	31
Prior health characteristicsd
Self-rated health
Poor	3	3	3	3	3	3
Fair	12	12	12	13	10	11
Good	36	36	36	32	34	33
Very good	39	38	38	38	37	37
Excellent	10	11	11	11	11	11
Missing	<1	1	1	4	6	5
Body mass index category
Normal weight	34	34	34	27	35	30
Overweight	33	33	33	36	35	36
Obese I	17	19	18	18	15	17
Obese II	14	13	13	13	9	11
Missing	2	2	2	6	6	6
Chronic conditione
No	83	82	83	79	76	78
Yes	16	18	17	17	18	17
Missing	<1	1	1	4	6	5

^aDistributions for each variable may not sum to 100 due to rounding.

^bN=1,347 (671 in the “excellent” to “poor” treatment and 676 in the “poor” to “excellent” treatment)

^cN=499 (264 in the “excellent” to “poor” treatment and 235 in the “poor” to “excellent” treatment)

^dThese are health characteristics measured when respondents first join the Knowledge Panel, prior to their participation in Studies 1 and 2. There are missing values for these variables, unlike the basic sociodemographic variables presented above that have no missing data.

^eThe question reads “Have you had a serious or chronic illness, injury, or disability that has required A LOT of medical care in the past 2 years?”