Re: Paging vs scrolling - actual research!
Heather Lyons <[email protected]>
| Newsgroups | gmane.comp.web.ucd |
|---|---|
| Message-ID | <[email protected]> |
>Date: Sat, 08 Feb 2003 17:57:27 +0000 >To: Avi Harel <[email protected]> >From: Heather Lyons <[email protected]> >Subject: Re: Paging vs scrolling - actual research! > >>==================== >>Interesting, but... >> >>In the conclusion, the author writes: >> >>"One might have expected that the Scrolling condition may be more time >>consuming given the users had to click the scroll bar more times to view >>the entire passage than they did in the Paging (3 clicks) or Full (1 >>click) condition. " >> >>I would like to comment that the expectations of the author are based on >>the wrong assumption, >>at least when our judgment is based on the theory of multiple mental >>resources. >> >>Reading activity requires mental resources of the type that requires the >>user's attention, and therefore >>involves extra load imposed on the user working memory. >>In contrast, after learning how to use the scroll bar, the user's mental >>activity is purely psychomotoric, >>which does not load the working memory. Therefore, scrolling does not >>compete with reading. >>On the other hand, navigation by paging requires some extra load on the >>working memory, for the users >>need to recall on which page they are and to decide which page to go next. >> >>To conclude, in spite of the extra clicks, we might expect that in >>reading tasks, scrolling is more convenient and faster >>than paging. >> >>Avi. > >The model changes slightly for small screens... >(around 200 X 300 pixels) >Users are happy scrolling through about 5 - 7 screens worth of content, >after that, text becomes unwieldly and it is necessary to divide content >into pages. >5-7 screens worth of text/page seemed about right. -Heather. -------------------------------------------------------------- POSTINGS (in plain text): [email protected] SUBSCRIPTION CHANGES: http://lists.syntagm.co.uk (or send email to mailto:[email protected]) --------------------------------------------------------------