The measurement model was evaluated for reliability, convergent validity and
discriminant validity. The analysis was done in two steps. First, factor analysis was
used to analyse the convergent validity and discriminant validity of all items
measuring proposed determinant factors in four contexts. Convergent validity is
confirmed if the items load strongly on their associated factors (loading exceed 0.50).
Discriminant validity is demonstrated if each item loads more strongly on its
associated factor than on other factors. The items that did not load strongly on the
intended factors were dropped for subsequent analysis. Second, internal consistency
reliability was employed by computing the coefficient score for Cronbach’s a. As a rule
of thumb, a Cronbach’s a above 0.70 is considered good and acceptable for most
research (Nunnally, 1978).