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Re: Nielson Norman Group Accessibility was: Re: 170147_1.html (fwd)

From: David Poehlman <poehlman1@home.com>
Date: Tue, 23 Oct 2001 09:56:58 -0400
Message-ID: <000901c15bca$95a00c20$2cf60141@mtgmry1.md.home.com>
To: "Jan Hellbusch" <hellbusch@web.de>, "AccessSystems" <accessys@smart.net>, <w3c-wai-ig@w3.org>
not unless the others are typos too. <grin>

I actually find the screen reader one acceedingly low considering I am a
screen reader user myself and get about 80 percent.  I'd have to look at
their study but I am not inclined to pay that high a price for it.

One thing that is needed here though is to look at the relative
relationships.  a screen reader user needs to become familiar with
things in ways that a controll does not so that should have been taken
into account.  Now, if there are accessibility issues that is a
different thing.  Also, I don't think 104 constitutes a good sample
unless they are well distributed across technical capability and other

----- Original Message -----
From: "Jan Hellbusch" <hellbusch@web.de>
To: "AccessSystems" <accessys@smart.net>; <w3c-wai-ig@w3.org>
Sent: Tuesday, October 23, 2001 9:18 AM
Subject: Nielson Norman Group Accessibility was: Re: 170147_1.html (fwd)

In the NNG report the control group is quoted to have needed
substantially longer than screen reader/screen magnifier users::

>      * Task completion rate: Screen reader users were able to complete
>        the tasks given to them 12.5% of the time; screen magnifier
>        21.4% of the time; control group 78% of the time.

While first reading, I read 7.8% for the control group, which would
correspond to my experiences. Could the 78% be a typo or scanning error?


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Received on Tuesday, 23 October 2001 09:56:48 UTC

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