Vaccine Hesitancy Scale (VHS, WHO SAGE)
Psychology: Health & SleepReliability: alpha 0.793 sample items
About this scale
A 10-item measure of vaccine hesitancy across two factors: lack of confidence and risk perception. Used widely in COVID and routine-immunization research.
Sample item(s)
“Childhood vaccines are important for my child's health (reverse)”
“I am concerned about serious adverse effects of vaccines”
“Generally I do what my doctor or healthcare provider recommends (reverse)”
Reliability
Reported internal consistency: alpha 0.79. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Standard WHO-SAGE instrument.
Source & citation
Larson, H. J., Jarrett, C., Schulz, W. S., Chaudhuri, M., Zhou, Y., Dube, E., Schuster, M., MacDonald, N. E., & Wilson, R. (2015): Measuring vaccine hesitancy: The development of a survey tool. Vaccine, Vol. 33, No. 34, pp. 4165–4175.
Source. Scale details are summarised from the publication cited above. Always consult the original source for the full item set, scoring, and permission to use.
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