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RE: Sampling optional?

From: Vivienne CONWAY <v.conway@ecu.edu.au>
Date: Thu, 31 Jan 2013 21:39:10 +0800
To: "Velleman, Eric" <evelleman@bartimeus.nl>, "public-wai-evaltf@w3.org" <public-wai-evaltf@w3.org>
Message-ID: <8AFA77741B11DB47B24131F1E38227A901007237325A@XCHG-MS1.ads.ecu.edu.au>
I'm happy keeping it non-optional for now till we've had more input.  The journal article does seem to justify it.


Regards

Vivienne L. Conway, B.IT(Hons), MACS CT, AALIA(cs)
PhD Candidate & Sessional Lecturer, Edith Cowan University, Perth, W.A.
Director, Web Key IT Pty Ltd.
v.conway@ecu.edu.au
v.conway@webkeyit.com
Mob: 0415 383 673

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________________________________________
From: Velleman, Eric [evelleman@bartimeus.nl]
Sent: Sunday, 27 January 2013 9:03 AM
To: public-wai-evaltf@w3.org
Subject: Sampling optional?

Dear all,

We received great input to the new section about adding a random sample:
<http://www.w3.org/WAI/ER/conformance/ED-methodology-20130122#step3e>
Things we may want to discuss as input for the next editor draft:

1. The section must be optional
Most of us use a random sample. It seems important for verification, independence and the level of reliability. The paper that Vivienne sent around indicates that just using the structured sample is not enough.

Proposed resolution: Keep it non-optional until we have more backing info that random samples do not add to the results of the structured sample.

Let me know what you think?
Kindest regards,

Eric

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Received on Thursday, 31 January 2013 13:40:15 GMT

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