- From: Maurizio Boscarol <maurizio@usabile.it>
- Date: Thu, 14 Oct 2004 13:19:54 +0200
- To: Gez Lemon <gl@juicystudio.com>
- CC: w3c-wai-gl@w3.org
Gez Lemon wrote: >>What tests for clear writing do you know of Lisa. Please send thoughts. >> >> > >I've implemented a service on Juicy Studio that determines the Gunning Fog >Index, Flesch Reading Ease, and Flesch-Kincaid Grade of a web document ><http://juicystudio.com/fog/>. I'm not sure of its usefulness (if any) for >languages other than English, and I'm also not convinced about the >underlying principles behind the algorithms. The algorithms favour short >monosyllabic sentences, regardless of whether the sentence makes sense. >Obviously, it's possible to get a good score with gobbledy-gook, but I've >had quite a lot of positive feedback about its usefulness. Could make a >starting point? > > I think it is a good starting point to experiment. In fact, we need empirical data of this readability indexes usefulness on the web. Consider that in a 1999 book of Jared Spool (Web site usability: a designer's guide, Morgan Kaufmann Publishers), he used the Gunning Fog Index and the Flesch-Kincaid Grade in web pages and found that: - the less readable the site was, the more user were successful with the site - the less readable the site was, the more users found the site clear, complete, satisfying and useful. Yes, just the opposite of what you expect. :) And the opposite of usual behavior offline. The hypotesis is that this is due to different activity users make on a web page. Usually they don't read, they skim the page looking for something useful. This behavior is explained also in some recent "semantic" usability models on the web, like the Pirolli "information scent" and Blackmon, Polson and Kitajima "Cognitive walkthrough for the web". Moreover, like you noted, in languages different from english all this linguistic tools need to be revalidated. To have a tool like your may help a lot to experiment further. I'd like very much to have such an easy tool to play with in italian language... ;-) Maurizio Boscarol http://www.usabile.it/
Received on Thursday, 14 October 2004 11:19:01 UTC