抄録
Readability formulas have been developed as a measure to predict ease or difficulty of English texts especially for native speakers of English. On the other hand, only a limited number of studies have been directed toward generating readability formulas for Japanese speakers, much less for learners of Japanese. The authors worked on the development of an environment to facilitate their reading practices and automatically create Japanese readability equations based on the study logs of individual learners. In the experiment, Korean university students in the experimental group who were given Japanese articles chosen by the program scored better on a reading post-test than the ones in the control group, who were given articles randomly without adjusting to their reading levels. The overall findings suggest that the effective control of text readability could help improve their reading
performance.