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. 2024 Jul 24;20(1):2383016. doi: 10.1080/21645515.2024.2383016

Table 3.

The theory of planned behavior measurement model.

Latent Factors N Items Mean SD Standardized Factor Loadings
Attitude
(α = 0.87)
292 Receiving a COVID-19 vaccine would protect me from getting COVID-19. 4.5 0.91 0.580
210 If I get a COVID-19 vaccine, I could go to school in person. 4.6 0.70 0.343
292 If I get a COVID-19 vaccine, I could safely participate in school, group, and sports activities. 4.3 0.78 0.683
292 If I get a COVID-19 vaccine, I could travel safely. 4.2 0.86 0.662
292 If I get a COVID-19 vaccine, I would be less worried about getting COVID-19. 4.4 0.81 0.692
292 Receiving a COVID-19 vaccine would help protect our community from COVID-19. 4.6 0.63 0.744
292 Receiving a COVID-19 vaccine would make me safe around other people. 4.4 0.80 0.781
198 Receiving a COVID-19 vaccine would help protect other students and teachers in my school from COVID-19. 4.6 0.70 0.710
281 Receiving a COVID-19 vaccine would protect others in my family from getting COVID-19. 4.7 0.60 0.742
Subjective Norm
(α = 0.82)
292 Most people who are important to me would approve of me receiving a COVID-19 vaccine. 4.5 0.77 0.662
178 My boyfriend/girlfriend would approve of me receiving a COVID-19 vaccine. 4.7 0.62 0.529
292 My family would approve of me receiving a COVID-19 vaccine. 4.4 0.87 0.550
291 My friends would approve of me receiving a COVID-19 vaccine. 4.6 0.61 0.648
265 My doctor would approve of me receiving a COVID-19 vaccine. 4.9 0.45 0.689
81 My pastor or other religious leader would approve of me receiving a COVID-19 vaccine. 4.4 0.80 0.269
292 My mother would approve of me receiving a COVID-19 vaccine. 4.4 1.02 0.378
292 My father would approve of me receiving a COVID-19 vaccine. 4.4 0.97 0.417
Perceived Behavioral Control
(α = 0.91)
292 I am sure I can get a COVID-19 vaccine, even if I have many problems in my life. 4.3 0.82 0.478
292 I am sure I can get a COVID-19 vaccine, even if I am very busy. 4.4 0.74 0.668
292 I am sure I can get a COVID-19 vaccine, even if it is hard to find a place that offers the vaccine. 4.1 0.89 0.824
292 I am sure I can get a COVID-19 vaccine, even if it is offered at inconvenient times. 4.0 1.05 0.894
292 I am sure I can get a COVID-19 vaccine, even if it is hard to make an appointment. 3.9 1.05 0.899
257 I am sure I can get a COVID-19 vaccine, even if I have to take time off from work or school to be vaccinated. 4.1 1.05 0.663
292 I am sure I can get a COVID-19 vaccine, even if the place that offers the vaccine is far from my home. 3.8 1.10 0.762
292 I am sure I can get a COVID-19 vaccine, even if the waiting time is very long. 4.0 0.93 0.753
Intention 292 Are you willing to get a COVID-19 booster if one becomes available? 1.2 0.58 Not applicable

Abbreviations: COVID-19 (coronavirus disease 2019), SD (standard deviation).