The Effects of Line Length on Reading Online News (13 Jul 2005)
This study examined the effects of line length on reading speed, comprehension, and user satisfaction of online news articles. Twenty college-age students read news articles displayed in 35, 55, 75, or 95 characters per line (cpl) from a computer monitor. Results showed that passages formatted with 95 cpl resulted in faster reading speed. No effects of line length were found for comprehension or satisfaction, however, users indicated a strong preference for either the short or long line lengths.
Article URL: http://psychology.wichita.edu/surl/usabilitynews/72/LineLength.htm
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