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. 2021 Sep 3;9(9):985. doi: 10.3390/vaccines9090985

Table 3.

Construct, convergent, internal consistency, floor and ceiling effects of COVID-19 vaccine hesitancy (n = 387).

COVID-19
Vaccine Hesitancy
Factor loading values * Component 1
  1. Would you take a COVID-19 vaccine if offered? … 0.51
  2. If there is a COVID-19 vaccine available,… 0.73
  3. I would describe my attitude towards receiving a COVID-19 vaccine as:… 0.76
  4. If a COVID-19 vaccine was available at my local pharmacy, I would:… 0.72
  5. If my family or friends were thinking of getting a COVID-19 vaccination, I would:… 0.72
  6. I would describe myself as:… 0.78
  7. Taking a COVID-19 vaccination is:… 0.66
Percentage of variance, % 49.4%
Item-scale convergent validity, mean of Rho (range) 0.70 (0.65–0.74)
Internal consistency, Cronbach’s alpha 0.90
Floor effects, % 11.60
Ceiling effect, % 0.00

Abbreviations: COVID-19, coronavirus disease 2019; Rho, Spearman’s correlation coefficient. * Principal component analysis using Promax rotation method.