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| YAC Data Language |
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Single- and multi-choice responses (not questions)
Usually, questions are defined as either single- or multiple-choice.
But, actually, you should look as responses as single- or multiple-choice.
And responses of these two types may be mixed in a single question.
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Nested randomized blocks
In version 2.10 of YAC Interview Kit
we introduced blocks to group other blocks, pages, and questions.
What's more, the order of elements in a block may be randomized.
In this text we discuss this feature in greater details,
especially on nesting blocks (with randomization).
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Example of quota checking
A bit more complex example of quota control
in our YAC Interview Kit software.
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Quotas in YAC Interview Kit
YAC Interview Kit has mechanisms
for controlling quotas during a survey.
In this text we go into more detail about the constructs implemented in YIK's scripting language
and how these map to client's requirements and the questions in the questionnaire.
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Handling missing data in filter expressions
Handling of missing data in filtering expressions is discussed in this text -
filter expression such as may be found in questionnaire scripts or data analysis programs (for instance - target group definitions).
The solution is based on 3-valued logic with the values of TRUE, FALSE, and MISSING (DATA).
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noback vs. noret
A short post on two possible instructions that block respondents
from going back to previous questions in computer aided interviewing systems,
and especially in system where respondents fill out the questionnaires themselves (be it CASI or CAWI).
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YAC Data Language
Description of a language that is used in YAC applications, often in place of XML,
for defining various elements, such as questions, responses, 3D objects, DB entries, etc.
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