Survey Automation Report and Workshop Proceedings (2003) / Chapter Skim
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The TADEQ Project: Documentation of Electronic Questionnaires
The TADEQ Project: Documentation of Electronic Questionnaires
Pages 97-115
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From page 97... ...
, we're just about set. Our next speaker is going to be Jellce Bethlehem, who is a senior advisor to the Department of Statistical Methods at Statistics Netherlands, and is past head of the Statistical Informatics branch there.
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From page 98... ...
We have checks in the questionnaire structure; these were not mentioned too much this morning, I think, but these are a valuable, extra advantage as compared to a paper questionnaire. You are able to detect inconsistencies while you are carrying out an interview, and are also able to correct incomplete answers in the course of an interview.
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From page 99... ...
Yes 1 No 2 END OF QUESTIONNAIRE Figure 11-7 Portion of a sample questionnaire, as it might be represented on paper. we apply, in Blaise, a more-or-less modular structure, in that we have one big questionnaire but can divide that up into sub-questionnaires, and those sub-questionnaires can be divided, so that you have a more modular approach that I think is very important when you're working on large questionnaires.
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Figure 11-8 Portion of a sample questionnaire, as it might be represented in CASES.
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From page 101... ...
But there are also other systems in the world, and we have even seen hybrid systems that support both GOTO-type and IF-THENELSE-lilce instructions, which malces things even more complicated, at least if you are looking at that from the routing logic point of view. But, in the end, it's true that the routing structure is a graph, as was already mentioned just a moment ago, and the vertices are the various types of questionnaire objects you have, and the edges are the possible transitions possible moves from one part of the questionnaire to the other.
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From page 102... ...
What would such a graph look lilce? Well, this is a simple example of a small part of our Labour Force Survey.
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~ B' , T Ad. 1 ED Figure 11-10 Hypothetical routing graph of a questionnaire.
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From page 104... ...
Well, everybody lcnows what a flowchart looks lilce; the green boxes indicate questions, and these diamonds indicate decision points where you can go to different parts of the questionnaire depending on the condition, whether or not it is satisfied. This can be very illustrative but, on the other hand, also here, information is limited.
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From page 105... ...
What is the sub-group of people, Lands what are the conditions leading to this question? And there was a need for detailed information about the routing structure, and there was not that heavily expressed but some need for tools to analyze the routing structure.
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From page 106... ...
This is how the routing structure is defined in the Questionnaire Definition Language. See Figure II-12.]
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From page 107... ...
Well, a question can be closed, numeric, open-end, various types of questions. And below here you see that a closed question consists of a number of items, and every item has a code and a text, etc., etc.
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From page 108... ...
This is the main view of the questionnaire, and by simply clicking on the icons, you can unfold these three maybe not all of it at the same time but you can focus in on the block you want to study or talce a look at. This is the view completely unfolded, and you see all single questions here; you see text, computations, checks, all sorts of things.
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From page 109... ...
Here, again, the main overview corresponds to the main tree overview. So the green blocks are the sub-questionnaires, and the blue symbols indicate decision points in the routing structure.
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From page 110... ...
Bethlehem analyzed directly using TADEQ during the presentation is different than the one for which the screen shots in Figures II-13 and II-14 are available.
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From page 111... ...
.,.,.~.,.,., """""""""""' "'""''"""""""''"' ''""""""""" """""""'"""'""'''""""'""' """''"" ................................................................................................................................................................................................................................ Figure 11-14 Screen shot of some route statistics generated by TADEQ for a sample questionnaire.
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From page 112... ...
also indicated—get to different output, documentation output for different systems. And, of course, we have the feeling that the analysis tools improve the quality of the data collection instrument because it helps you to find things wrong when you are designing it.
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From page 113... ...
I have seen questionnaires where questions consist completely of text fills; flaughter] there was no question text at all, and all question text was derived from databases elsewhere, depending on certain conditions.
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From page 114... ...
If I go to the data archive and ask for the survey data file, I get documentation in XML but it's not related at all to my questionnaire instrument documentation. But it's also in XML, and TAI)
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From page 115... ...
BETHLEHEM: If you generate it from Blaise, the XML file which yol1 can do, if yol1 lcnow Blaise then it will be an exact copy of the Blaise program. One remark to be made is that not every object in Blaise is represented in the XML; if you have very special things lily coding questions or calls to an external file, that is more handled lily a
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