This was important to supplement as well as to
compensate for the limitations of other methods.
Documentary evidence acts as a method to crossvalidate
information gathered from interview and
observation given that sometimes what people say
maybe different from what people do. Additionally,
documents provide guidelines in assisting the
researcher with his inquiry during interview. Official
and unofficial documents and records pertaining to the
process of training activities in the organizations were
analyzed. Thus, corroboration of multiple qualitative
techniques for this case studies research therefore
enhance the validity and reliability of findings.