• The knowledge discovered by Chien and Chen was
based on parameters such as age, gender, marital status,
education and experience whereas in our research the
relations of those parameters were with entrance exam
marks. Obviously limited parameters will bring limited
knowledge too.
• Their case study was based on a capital-intensive
industry, whereas our research has focused on a service
industry, in which human capital plays a major role.
• The strength of Chien and Chen’s research is the number
of data records in excess of 3000.
• In their research there are three target variables, namely,
job performance, retention and turn-over reasons.
However, in the current research, target variables are ‘job
performance’ and ‘promotion scores’. This is because the
latter variables are related not only to personnel but also
to the organisation.