Examined the role of daylight in student achievement in three schools and found a uniformly positive and statistically significant correlation between the presence of more daylight and better student test scores. Offers guidelines on designing daylit classrooms. (EV)

Results from a pilot study of four different lighting systems indicate that over a two-year period, light had measurable and significant effects on students. Under full-spectrum fluorescent lamps with ultraviolet enhancement, students developed fewer dental cavities and had better attendance, achievement, and growth and development than students…