The survey consists of three parts: (1) organizational and individual
factors, (2) safety behavior, and (3) demographic information.
Three safety experts reviewed the preliminary survey to
maximize the content validity, as suggested by DeVellis (2003)
and Seo (2005). Included were two safety advisors who both have
had over 20 years of experience of construction safety management,
and a construction safety researcher. Several items were further
refined based on the feedback provided by them