It is well-known that these explainable variables are often highly intercorrelated (Castrignanò and Buttafuoco, 2004; Facchinelli et al., 2001; Lin and Chang, 2000; Mico et al., 2006; Slavković et al., 2004).
It is well-known that these explainable variables are often highly intercorrelated(Castrignanò and Buttafuoco, 2004; Facchinelli et al., 2001;Lin and Chang, 2000; Mico et al., 2006; Slavković et al., 2004).