In order to achieve a high quality of the research design, criteria and further
suggestions by Yin (2009) were followed. Reliability, i.e. the possibility to repeat the
research with the same findings, was ensured by the use of case study protocols and
the development of a case study database. Construct validity, i.e. the identification of
correct operational measures, was reached by using multiple sources of evidence and by establishing a chain of evidence to allow a third party to follow all research steps.
Due to the explorative character of this research, internal validity is of no concern.
External validity, i.e. generalizability beyond the immediate case study, was reached
by company selection along the mentioned dimensions. It turned out that replication
was possible along these dimensions.
In order to achieve a high quality of the research design, criteria and furthersuggestions by Yin (2009) were followed. Reliability, i.e. the possibility to repeat theresearch with the same findings, was ensured by the use of case study protocols andthe development of a case study database. Construct validity, i.e. the identification ofcorrect operational measures, was reached by using multiple sources of evidence and by establishing a chain of evidence to allow a third party to follow all research steps.Due to the explorative character of this research, internal validity is of no concern.External validity, i.e. generalizability beyond the immediate case study, was reachedby company selection along the mentioned dimensions. It turned out that replicationwas possible along these dimensions.
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