Recently, Chou and Yang (2012) use the structural equation
modeling (SEM) technique to prioritize the practice of the
PMBOK Guide in the capital project industry. Based on a
sample of 127 project managers and stakeholders, they reveal
the interrelationships between the PMBOK Guide and project
performance. Chen (2013) analyzes 121 capital projects and
identifies key variables in the initiation and planning phases of
projects that differentiate between healthy and distressed
projects at completion. He then demonstrates that it is feasible
to discriminate simultaneously between healthy and distressed
projects prior to the project execution phase.