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Table 6 Exploratory factor analysis of P-Vac-Cov19-DENT scale

From: Psychometric evidence of a perception scale about covid-19 vaccination process in Peruvian dentists: a preliminary validation

Item

Total variance explained (%)

Initial eigenvalues

Parallel Analysis a

Total

Variance

Accumulated

Real-data

Mean of random

95th percentile of random

Q1

6.40

35.55

35.55

39.29

11.44

12.72

Q2

2.19

12.19

47.74

12.74

10.44

11.49

Q3

1.84

10.23

57.97

10.80

9.63

10.57

Q4

1.11

6.19

64.16

6.42

8.93

9.70

Q5

0.84

4.69

68.85

5.01

8.27

8.97

Q6

0.78

4.32

73.16

4.07

7.62

8.22

Q7

0.66

3.69

76.85

3.73

7.01

7.52

Q8

0.61

3.38

80.23

3.14

6.41

6.90

Q9

0.52

2.91

83.13

2.65

5.84

6.35

Q10

0.45

2.52

85.65

2.58

5.21

5.78

Q11

0.44

2.43

88.09

2.17

4.60

5.23

Q12

0.39

2.17

90.26

2.04

4.00

4.63

Q13i

0.38

2.11

92.37

1.87

3.39

4.09

Q14

0.34

1.91

94.28

1.61

2.77

3.49

Q15i

0.30

1.69

95.97

1.36

2.13

2.86

Q16

0.29

1.59

97.56

0.41

1.50

2.22

Q17

0.26

1.42

98.98

0.10

0.81

1.51

Q18

0.18

1.02

100.00

   
  1. aParallel Analysis based on minimum rank factor analysis
  2. Advised number of dimensions: 3