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Table 2 Final Cronbach’s Alpha scores for internal validity of items in each construct of the Theory of Planned Behavior

From: Understanding why low-risk patients accept vaccines: a socio-behavioral approach

Construct

Number of survey items

Cronbach’s Alpha

Attitudes

6

0.95

Subjective norms

7

0.70

Perceived behavioral control

4

0.81

Behavioral intention

3

0.70