Performance of a Reading Test under Different Levels of Illumination

This is the second report of a series describing experiments designed to explore and define relationships between illumination level and the performance of tasks having selected realistic components of typical office tasks. The first report described an experiment involving proofreading of paragraphs for misspelled words.1 In that experiment, performance improved with increased illumination at different rates for a group of young and a group of older subjects and for different print qualities. The experiment described in this report involved reading for information.