Table 2.
Standardized factor loading | ||||||
---|---|---|---|---|---|---|
Item | Item mean (SD) | VPD Awareness | Benefits | Past Behavior | Efficacy and Safety | Trust |
Have you personally seen someone with either | 1.58 (0.04) | 0.93 | ||||
polio, pneumonia, measles or whooping cough? | ||||||
Do you know of someone in your family or | 1.71 (0.04) | 0.93 | ||||
community who had either polio, pneumonia, | ||||||
measles or whooping cough? | ||||||
I believe vaccines are safe | 0.03 (0.01) | 0.93 | ||||
I believe vaccines protect my child from vaccine | 0.03 (0.01) | 0.95 | ||||
preventable disease. | ||||||
Have you ever delayed having your child get a | 0.48 (0.04) | 0.89 | ||||
vaccination for reasons other than illness or | ||||||
allergy? | ||||||
Have you ever decided not to have your child get a | 0.32 (0.04) | 0.78 | ||||
vaccination for reasons other than illness or | ||||||
allergy? | ||||||
Vaccination does more good than harm | 0.24 (0.03) | 0.85 | ||||
Many of the illnesses which vaccination prevent are | 0.19 (0.02) | 0.45 | ||||
severe | ||||||
If you had another infant today would you want | 0.07 (0.02) | 0.55 | ||||
your infant to get all recommended | ||||||
vaccinations? | ||||||
Do you trust the information that you receive from | 0.05 (0.01) | 0.54 | ||||
your healthcare worker about vaccinations? | ||||||
Following the nationally recommended vaccination | 0.04 (0.01) | 0.66 | ||||
schedule is a good idea for my child | ||||||
Omega coefficient | 0.94 | 0.99 | 0.86 | 0.92 | 0.78 | |
Alpha coefficient | 0.78 | 0.87 | 0.64 | 0.54 | 0.41 | |
Mislevy & Bock reliability | 0.90 | 0.94 | 0.85 | 0.80 | 0.73 |
Factor loadings <0.30 not shown and items which failed to load onto any of the five factors not listed in table.
Definitions: SD: standard deviation; VPD: vaccine-preventable disease.