Intervention(s)
The experiment varied two factors
Factor 1 is SMS text message sent to respondent prior to CATI interview call, with 3 possible levels:
S0 = No SMS
SG= SMS, appeal to "government"
SR= SMS, appeal to "researcher"
Factor 2 is appeal in the consent script, with 3 levels:
G = consent appeals to "government"
R = consent appeals to "researcher"
P = consent appeals to "policymaker"
In Colombia and Mexico, it was a 2x2 (no cases assigned to S0 or P)
In the other wave 1 countries it was a 3x1 (S, G, or P)
"Mixed message" cells (SG-R, SG-P, SR-G, SR-P, etc.) are not populated.
In Spanish-speaking countries, "policymaker" appeals are omitted because terminology is hard to distinguish from government.
In Wave 2 surveys, the treatment factor structure is altered and different messaging contrasts are planned. The pre-survey SMS message has the following appeal type for each treatment arm:
A1 Placebo/short message -- no specific appeal
A2 General Learning (Food access), says that the first wave of the survey was informative about food access
A3 General Learning (Household finances), says the first wave of the survey related to household finances
A4 Specific Learning (Food access), same as above but shared a statistic about food access
A5 Specific Learning (Household finances), same as above, but shared a statistic about household finances
B1 Self Interest, reminded respondents about the monetary incentive
B2 General Learning (Food access) + Self interest, same as A2, but included message about monetary incentive
B3 General Learning (Household finances) + Self interest, same as A3 but included message about monetary incentive
B4 Specific Learning (Food access) + Self interest = A4 + monetary incentive message
B5 Specific Learning (Household finances) + Self interest = A5 + monetary incentive message