Text was presented on a cathode-ray tube screen in a format called "leading," in which the text was moved in discrete jumps of one or more characters at a time from right to left. Experiments 1 and 2 demonstrated that jumps of from 4 to 10 characters at a time produced no significant comprehension differences, but reading comprehension was poorer for jumps of 1 or 2 characters. Experiment 3 showed that reading comprehension in the leading format was significantly inferior to that obtained when text was presented in a standard page format on the CRT screen.
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