Table 5.
Correlations between the ability indices and indicators of the five Cs and social norms in the holdout sample (n = 395).
| Version 1 | Version 2 | |
|---|---|---|
| I am confident that COVID-19 vaccines are safe and effective. | 0.18 *** | 0.15 ** |
| Vaccination against COVID-19 is unnecessary. | −0.32 *** | −0.22 *** |
| Everyday stress prevents me from getting a COVID-19 vaccine. | −0.36 *** | −0.25 *** |
| When I think about getting vaccinated against COVID-19, I weigh the benefits and risks to make the best decision possible. | −0.03 | −0.03 |
| When everyone is vaccinated against COVID-19, I don’t have to get vaccinated too. | −0.40 *** | −0.25 *** |
| Your friends think it is important for everyone to get a COVID-19 vaccine. | 0.28 *** | 0.22 *** |
| Your family members think it is important for everyone to get a COVID-19 vaccine. | 0.38 *** | 0.33 *** |
| Of the people close to you, what proportion of them would want you to get the COVID-19 vaccine? | 0.10 * | 0.07 |
| How many people in Nigeria do you think will get the COVID-19 vaccine when it becomes available? | 0.03 | −0.00 |
| How many people who work in healthcare in Nigeria do you think will get the COVID-19 vaccine when it becomes available? | 0.13 * | 0.08 |
NOTE: Version 1 of the ability index is the unweighted sum of the twelve individual items, and Version 2 is the weighted sum of the items with the weights being the logistic regression coefficients presented in Table 4. *** = p < 0.001; ** = p < 0.01; * = p < 0.05.