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Table 3 The Cronbach’s alpha and the ICC for FI(HPV)VUBYA

From: Designing and psychometric assessment of the scale of factors influencing HPV vaccine uptake behaviors in young adults

Factors

Number of items

Cronbach’s alpha

Interclass correlation coefficient (95% CI)

External stimuli

7

0.91

0.91 (0.86–0.95)

Perceived Vulnerability

6

0.89

0.89 (0.82–0.94)

Perceived severity

6

0.88

0.88 (0.81–0.93)

Perceived stigma

6

0.81

0.88 (0.81–0.93)

Outcome Expectations

4

0.85

0.85 (0.76–0.92)

Eenvironment

4

0.88

0.88 (0.81–0.93)

Perceived barriers

5

0.78

0.78 (0.64–0.88)

Knowledge

13

0.84

0.84 (0.75–0.91)

Total

51

0.86

0.90 (0.84–0.94)

  1. ICC intra-class correlation coefficient