Reliability is one of the most critical elements in assessing the quality of the construct measures [17], and
it is a necessary condition for scale validity. A statistically reliable scale provides consistent and stable
measures of a construct. Composite reliability estimates are used to assess the inter-item reliability of the
measures. Estimates greater than .70 are generally considered to meet the criteria for reliability. Some
items may be removed from the construct scales if their removal results in increases in the reliability
estimate, however, care must be taken to ensure that the content validity of the measures is not threatened
by the removal of a key conceptual element.
As shown in the table below that reliability of each factor is above .75. In table 2, are listed the composite
reliability estimates for each of the measurement scales.