An examination of range effects when evaluating discomfort due to glare in Singaporean buildings

This article discusses ratings of visual discomfort from glare across different buildings located in Singapore. These data were used to determine if range effects influence the vertical illuminance values for same when category rating procedure is used. The effect occurs maxima and minima (i.e. range) vary buildings. Our analyses showed that with a higher building, mean value criterion also increased. results suggest caused by ranges measured present biased discomfort. Although these may be unavoidable some have vastly levels light, overall must carefully evaluated predicting Matching conditions enable provide more reliable evaluations due glare.