Table 3. Correction effects on other Zika beliefs.
*P < 0.05, **P < 0.01, ***P < 0.005 (two-sided); OLS models with robust standard errors. Respondents are members of Survey Sampling International’s online panel in Brazil. For each outcome measure, higher values indicate greater belief in the claim or claims in question [measured on a Likert scale ranging from “not at all accurate” (1) to “very accurate” (4); see the Supplementary Materials for wording]. “T” and “F” indicate true and false, respectively, for the outcome measures.
| (A) 2017 Zika experiment | |||||||||
|
Causes neurological problems (T) |
Spreads via mosquito bite (T) |
Spreads via sexual contact (T) |
Spread via casual contact (F) | ||||||
| Myths correction | −0.22*** | −0.09*** | −0.03 | −0.10*** | |||||
| (0.06) | (0.03) | (0.07) | (0.03) | ||||||
| Constant (placebo) | 3.01*** | 3.85*** | 1.98*** | 1.25*** | |||||
| (0.04) | (0.02) | (0.05) | (0.03) | ||||||
| n | 1259 | 1261 | 1260 | 1261 | |||||
| (B) 2018 Zika experiment | |||||||||
|
Causes neurological problems (T) |
Spreads via mosquito bite (T) |
Spreads via sexual contact (T) |
Spread via casual contact (F) |
Weak immune more vulnerable (F) |
Transmit Zika in utero (T) |
Zika increases microcephaly (T) |
Get Zika from donated blood (T) |
Microcephaly causes paralysis (F) |
|
| Myths correction |
−0.20*** | −0.13*** | −0.04 | −0.04 | −0.04 | −0.15* | −0.19*** | −0.12 | −0.10 |
| (0.06) | (0.04) | (0.07) | (0.04) | (0.07) | (0.06) | (0.04) | (0.07) | (0.06) | |
| Constant (placebo) |
3.00*** | 3.83*** | 1.86*** | 1.26*** | 2.71*** | 3.37*** | 3.69*** | 2.54*** | 2.82*** |
| (0.04) | (0.02) | (0.05) | (0.03) | (0.05) | (0.04) | (0.03) | (0.05) | (0.04) | |
| n | 1059 | 1061 | 1053 | 1061 | 1057 | 1056 | 1056 | 1059 | 1062 |