Group of hidden cause variables

B1

(b1.2; b1.3)

B2

(b2.1; b2.3)

B3

(b3.1; b3.2; b3.3; b3.4)

B4

(b4.1; b4.3)

B5

(b5.1; b5.3; b5.4)

B6

(b6.1; b6.2)

B7

(b7.1; b7.2; b7.3)

B8 (b8.1; b8.2)

Sum of the variables

Cronbach’s Alpha

0.799

0.719

0.726

0.812

0.663

0.805

0.684

0.69

0.78