The effect of constituent division of reading texts on ESL students was examined to note possible benefits to reading comprehension. An experimental group in each of three ESL proficiency levels was tested on a reading passage divided at the ends of lines at major constituent boundaries. Within each level, the experimental group was compared to a control group in three areas: reading time, test time, and test results. Results of the study do not support the theory that constituent division of reading texts could be beneficial to ESL students. The differences in reading time, test time, and test results of the experimental group and the control group in each level were insignificant.