The purpose of this study was to investigate the relationship between eye voice span (EVS), reading ability, and readability. Fifty average and poor third, fourth, and fifth-grade students were selected on the basis of their comprehension scores on the Gates-MacGinitie Reading Test. They were individually tested for EVS on paragraphs ranging in readability from second- to fifth-grade difficulty. The results show that (1) EVS appears more a function of grade than reading ability; (2) EVS increases with age (grade); (3) EVS tends to increase as material becomes easier but not significantly except for poor students; (4) older poor readers out-perform average third graders in EVS even though third-grade readers have more ability; and (5) older poor readers tend to perform as well as average readers in the same grade in EVS even though the average readers have more ability. A selected bibliography is included. (Author/MB)