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Table 4 Identification of negative and positive reagents, according to item-total analysis of the P-Vac-Cov19-DENT scale

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

Item

Initial

Final

Item-total correlationa

Covariance

Item-total correlationa

Covariance

Q1

0.70

9.52

0.68

10.29

Q2

0.66

7.61

0.66

8.43

Q3

0.68

9.06

0.68

9.97

Q4

0.57

4.92

0.63

6.07

Q5

0.57

6.12

0.60

7.19

Q6

0.62

5.41

0.62

6.05

Q7

0.70

9.79

0.68

10.68

Q8

0.58

6.91

0.56

7.42

Q9

0.71

7.98

0.70

8.77

Q10

0.74

10.08

0.69

10.47

Q11

0.60

4.98

0.65

6.03

Q12

0.54

4.93

0.55

5.59

Q13

−0.10

−1.21

0.36

4.82

Q14

0.33

3.69

0.51

6.31

Q15

−0.18

−1.87

0.42

4.72

Q16

0.56

6.17

0.55

6.75

Q17

0.55

6.51

0.49

6.50

Q18

0.58

7.06

0.51

6.85

  1. aBased on Pearson’s correlation
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BMC Health Services Research

ISSN: 1472-6963

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