Occupants’ evaluation of green features in green commercial office buildings: Establishing the validity and reliability of the survey instrument

Property owners and end-users (tenants and owner-users) have an important role in the development of sustainable real estate assets. this is due to the fact that they experience the benefits of sustainability in their buildings,which would promote the development of more sustainable buildings in the industry. the aim of this paper is to discuss the procedure of developing and validating an instrument to examine the occupants’ evaluation of green features in green commercial office building based on three basic steps; (1) item development and judgement,(2) designing and conducting a pilot study,and (3) finalizing the survey. the 56-item instrument which comprises of 10 points likert scales was developed prior to performing the exploratory factor analysis (efa). the results of this study highlight the instrument to better understand the green factors and their attributes for commercial office building under the environment,social and economic sustainability features. © 2015 penerbit utm press. all rights reserved.