Table 2:

Mean Outcome Variables in Survey by Mode and Income Group

	Phone Mean (N=703)	Web Mean (N=1,101)	Difference	P-Value
Weekly Sweetened Beverage Consumption	2.49	3.55	−1.07	0.00
Agrees with Tax	0.60	0.57	0.03	0.24
Tax Impact Score	2.79	2.08	0.72	0.00
Low-Income Respondents (N=805)	Phone Mean (N=359)	Web Mean (N=446)	Difference	P-Value
Weekly Sweetened Beverage Consumption	2.82	3.93	−1.11	0.00
Agrees with Tax	0.59	0.54	0.05	0.16
Tax Impact Score	2.69	1.50	1.18	0.00
High-Income Respondents (N=909)	Phone Mean (N=344)	Web Mean (N=565)	Difference	P-Value
Weekly Sweetened Beverage Consumption	2.13	3.25	−1.12	0.00
Agrees with Tax	0.62	0.60	0.02	0.65
Tax Impact Score	2.91	2.53	0.38	0.25