Can self-evaluation measure the effect of IEQ on productivity? A review of literature

The purpose of this review is to investigate the use of self-evaluation as a method for measuring the\udproductivity of office workers. The objective is to highlight issues associated with self-evaluation and\udbarriers to its insufficiency in capturing occupant productivity in its totality. The literature includes\udreferred journal and conference papers. A review of available literature was carried out on the subject of\udperceptions studies and self-evaluation as well as occupant performance in the office environment.\udStudies that employed the use of self-evaluation (questionnaires or interview) as the sole method of\udmeasuring the effect of IEQ on productivity/performance were reviewed. The discussions carried out in\udthis paper show that self-evaluation is compromised by various issues that significantly affect the\udvalidity of their results. As such, it is insufficient as a sole method for measuring occupant productivity\ud(cognitive performance) and the influence of IEQ on it. This review is carried out on available literature\udon past studies. Empirical evidence is required to test the reliability of self -evaluation in measuring\udproductivity and the effect of factors such as IEQ on it. We demonstrated that self-evaluation methods\udof measuring productivity were affected by various research related issues. They are insufficient and do\udnot accurately measure productivity. As such, it cannot be claimed that a comfortable IEQ results in a\udproductive occupant based on results from self-evaluation studies. If such claims are to be made, more\udaccurate methods of assessment are required. This paper provides a novel view on the reliability of self\ud–evaluation results on the effect of IEQ on productivity