evaluated on a seven-point Likert scale. From these, 51 were received and used,
representing a satisfactory response rate of 22.4 per cent.
With respect to structural equation modelling (SEM), PLS-GRAPH was utilised. The
preference for a method based on ordinary least squares and principal component analysis,
such as PLS, arose from the advantages in relation to methods based on covariance and
factor analysis, namely with regard to sample size, prediction orientation, and confidence
level on the theory that links measures with their respective constructs (Barclay et al., 1995;
Chin et al., 2003).