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RE: Input for survey about random sampling

From: Velleman, Eric <evelleman@bartimeus.nl>
Date: Fri, 12 Oct 2012 14:02:30 +0000
To: "public-wai-evaltf@w3.org" <public-wai-evaltf@w3.org>
Message-ID: <3D063CE533923349B1B52F26312B0A465228B55D@s107ma.bart.local>
Dear all,

Please find below a new version of the survey with changes made after our Telco. I also tried to work the comments received through the mailing list into the questions. Hope this would be ok. Think it would give us a good overview of activities. I added a number of yes/no questions to make it easier to calculate the results...

Should we also add questions about the person answering the questions?

Please send your comments to the list before monday evening. 

** EvalTF Concept survey questions about sampling **

Note: You can fill in the survey more than once using different choices in the first and second question. Please note that the Methodology is about full websites (as defined in the Public Working Draft). The Public Working Draft can be found at: http://www.w3.org/TR/WCAG-EM/

#01. Please choose the evaluation activity for which you fill in this survey. If you recognize more than one of the activities, please consider filling out the form for each of them separately.
Your evaluation activity is: 
  - (checkbox) In-house website evaluation for your own organization
  - (checkbox) Website evaluation for external evaluation commissioner
  - (checkbox) A re-evaluation of a website that you have evaluated less than 1 month ago
  - (checkbox) Other - please specify below (text)

#02. How would you describe the goal of your evaluation. For an explanation of the diferent goals, please read the section about goals of an evaluation: http://www.w3.org/TR/WCAG-EM/#step1b
  - (checkbox) Basic evaluation 
  - (checkbox) Detailed evaluation
  - (checkbox) In depth evaluation  
  - (checkbox) Other - please specify below (text)

Please fill in the following questions depending on the evaluation activity you have chosen in question #01:

#03. For which purposes do you evaluate websites:
  - (checkbox) Provide in-depth analyses to guide website owners
  - (checkbox) Monitor the accessibility of a website over time
  - (checkbox) Final check before releasing or purchasing a website
  - (checkbox) Provide label or other certificate of conformance
  - (checkbox) Do large-scale evaluation of many websites
  - [checkbox] Pre-sales activities (evaluating websites in order to initiate a contract)
  - [checkbox] Evaluate websites in early/middle development stages 
  - [checkbox] Deliver training about Web accessibility evaluation 
  - (checkbox) Other - please specify below (text)

#04. Do you consult with the evaluation commissioner regarding the sample selection? 
  -(radio) Always
  -(radio) Sometimes
  -(radio) Never
  -(radio) Depends upon whether the website is being evaluated with or without the knowledge of the evaluation commissioner

#05. To what extent do the wishes of the evaluation commissioner influence the evaluation sample? 1= no influence (evaluator is independent in choice of evaluation sample), 5=total influence (evaluator is not independent in choice of of evaluation sample)
  -(radio) 1
  -(radio) 2
  -(radio) 3
  -(radio) 4
  -(radio) 5

#06. Do you select sample pages for evaluation based on (note: this question is independent of the tools you use):
  - (radio) Structured sampling only (Selection based on certain criteria)
  - (radio) Random sampling only (Random selection)
  - (radio) Both structured and random sampling

#07. Do you use automated tools to help select the sample (crawlers etc.)?
  - (radio) Yes
  - (radio) No

#08. If yes, please specify any tools you use to help you select the sample, and how you use these tools for sampling. (text)

#09. If you use automated sampling only, how do you check the tool? (text)

#10. If you use structured sampling, how do you select the individual web pages? (text)

#11. If you use random sampling, how do you select the individual web pages? (text)

#12. Does re-evaluation of a website influence the sample?
  - (radio) Yes
  - (radio) No

#13. If yes, how does re-evaluation of a website influence the sample? (text)

#14. Please specify if you sample pages differently or in different amounts for Basic Reporting, Detailed Reporting or In-Depth Analysis evaluation? Note that the evaluations are in all cases full evaluations of a website. (text). 

#15. What is the amount of pages you use in your sample when evaluating a website?
  - (radio) 1 - 5
  - (radio) 6 - 15
  - (radio) 16 - 30
  - (radio) 31 - 50
  - (radio) 51 – 100
  - (radio) More than 100

#17. You evaluate all the pages:
  - (radio) Manually
  - (radio)  Automatically 
  - (radio)  Automatically and manually
  - (radio)  Automatically and a smaller sample manually

#18. If the amount of pages in your evaluation sample is variable, what are –in most cases – the factor(s) that have the most influence on the size of the sample:
  - [checkbox] Size of the website
  - [checkbox] Number of technologies on the website
  - [checkbox] Amount of money available for the evaluation
  - [checkbox] Number of templates
  - [checkbox] Other, please specify below (text)

#19. How does the size of the website influence your selection? (text)

#20. How do you adjust your sampling approach for websites that are heavily template-driven? (text)

#21. If you use automated testing tool(s), does that change your sampling methodology?
  - (radio) Yes
  - (radio) No

#22. If yes, please explain how the use of automated testing tools changes your sampling methodology (text)

#23. How do you adjust your sampling approach for client-side rich web applications? (text) 

#24. How do you sample mobile web applications? (We are not referring to native applications) (text) 

#25. Do you look out for widgets, snippets, and other web page components to avoid re-evaluating them every time they appear on a website? 
  - (radio) Yes
  - (radio) No

#26. If Yes, how do you include them and the pages that they are integrated in into the sample? (text)

#27. How do you identify and sample the functionality (processes) provided on a website? (text)

#28. Do you select further sample pages based upon results from an initial selection (eg. to balance web page types or success criteria)?
  - (radio) Yes
  - (radio) No

#29. Please feel free to provide further thoughts or comments about how you approach sampling. (text)

Kindest regards,

Received on Friday, 12 October 2012 14:03:04 UTC

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