According
to
Hair,
Money,
Samouel,and Page. (2007), the
perfect
measure
of
a concept
needs
more
than
one
item.
Moreover,
according
to
Nunnally (1978),
to
assess
the
reliability
of
the
survey
instrument, the inter-item analysis can be used to test the scale’s internal consistency.
Hence, Cronbach's alpha is considered an adequate indicator of the internal consistency and the reliability of the
survey instrument. The test shows that the Cronbach’s alphas range from 0.708 to 0.754, which exceed the
minimum value of 0.7 to be acceptable (Sekaran & Bougie, 2010). This means that the instruments used to
measure the variable were acceptable and the data were later used for further analyses.