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DOI: 10.1177/016555150202800306 Styling the index: is it time for a change?Twente University, Enschede, The Netherlands Two empirical studies on the effects of indexing styles are presented. The research shows that there is an intricate relationship between task complexity and search efficiency afforded by style. A Run-In index yields the best performance when people engage in a search in which keyword and entry are identical. A Flush Right style, with leader dots to prevent line switching, yields the best performance for more complex search tasks as compared to a Run-In or an Indented style. It is argued that a clear visual separation between entry and locator may help the user in keeping apart the distinct goals of searching for an entry and looking for a locator.
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