A moderating effect can be tested by MRA because the analysis can test
the direct effect of the two orientations on the relationship between
commitment and transportation services.44) The analysis can become a
proper method of analysis when researchers want to test whether
moderation variables have a moderating effect or a quasi-moderating
effect on the relationship between independent variables and dependent
variables. Equation models of MRA are as follows. It compares and
analyzes regression equations as follows: