Abstract: The effects of two factors named word splittings and character-spaces on Chinese text reading comprehension were respectively tested in two experiments. The results showed:(1) that moving steps caused statistically significant difference on the reading comprehension: reading comprehension in 3-character per step was better than in 2-and 1-character per step, but the text moving in the speed of a word per step (both in appearing and disappearing condition) failed to facilitate the reading processes; (2) that character-spaces caused significantly different performances on Chinese reading, but the effects of character-spaces that larger than 1 character were still hanging in doubts; (3) that the effects of moving steps and character-spaces both were statistically significant in 10-character window, but insignificant in 20-charater window. Finally the causes of these findings on the bases of eye-movement researches on static text were discussed.

Key words: word splitting, character space, leading format, reading comprehension, Chinese text