Table 4 JCQ-20 structure. Item content, factor that the item belongs to, standardized factor loading (λ), standard error (S.E.), critical ratios (C.R.) and p-values in the retained model

JCQ1

I need to be learning new things.

Skill Discretion

(F1)

3.28

.70

.32

.05

7.07

<.001

JCQ2

I need to be creative.

2.85

.78

.42

.24

6.19

<.001

JCQ5

There is variety in the activities I do.

2.70

.81

.50

.28

6.53

<.001

JCQ7

I have the opportunity to develop my own skills.

2.78

.82

.78

.40

7.07

<.001

JCQ3

I can make many decisions by myself.

Decision Authority

(F2)

3.03

.83

.49

.04

11.97

<.001

JCQ4

I have a lot of freedom to decide how to do my job.

2.67

.87

.58

.06

12.58

<.001

JCQ6

My opinions count a lot.

2.55

.89

.87

.16

11.97

<.001

JCQ8

I have to work very fast.

Psychological Job Demands

(F3)

2.88

.86

.69

.10

12.41

<.001

JCQ9

I have to work very hard.

3.01

.82

.71

.06

15.63

<.001

JCQ10

I am asked to do an excessive amount of work.

2.64

.92

.78

.07

16.99

<.001

JCQ11(−)

I have enough time to do my job.

2.40

.78

.47

.06

10.61

<.001

JCQ12

I have to respond to contradictory orders.

2.58

.89

.53

.06

12.41

<.001

JCQ13

My boss or supervisor cares about the economic well-being of the staff in charge.

Supervisor Support

(F4)

2.26

.96

.79

.05

21.02

<.001

JCQ14

My boss or supervisor pays attention to what I say.

2.59

.90

.88

.04

24.35

<.001

JCQ15

My supervisor or boss helps to get the job done.

2.76

.84

.75

.04

20.97

<.001

JCQ16

My supervisor is successful in getting you to work well in a team.

2.66

.87

.80

.04

21.02

<.001

JCQ17

The people I work with are competent to do their job.

Co-worker Support

(F5)

2.87

.76

.66

.07

13.85

<.001

JCQ18

The people I work with are interested in me personally.

2.50

.87

.88

.09

16.34

<.001

JCQ19

My coworkers are friendly.

2.98

.69

.63

.06

14.50

<.001

JCQ20

My colleagues help to get the job done.

2.87

.77

.72

.08

13.85

<.001