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Table 8 Single Step Questionnaire: exploratory factor analysis

From: Translation and psychometric evaluation of the Swedish versions of the Nuss Questionnaire modified for Adults and the Single Step Questionnaire

Factor

1

2

3

Eigenvalue

4.69

1.18

1.04

Explained variance, cumulative (%)

39.07

48.87

57.5

Item

Loadings

5

.99

−.09

−.14

14

.93

−.02

−.07

15

.82

−.16

.16

4

.61

.15

−.36

16

.51

.12

.13

12

−.11

.81

−.10

11

−.02

.79

−.22

1

.09

.52

.30

2

.07

.51

.24

3

−.31

−.15

.86

8–9

.27

−.07

.64

7

.29

.19

.50

  1. SSQ item 6, 10 and 13 excluded after exploratory factor analysis exploration
  2. Loadings ≥ .40 are bolded and were considered to contribute to a factor