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CASES 4 is the character-based version of CASES and can operate in UNIX, DOS, or a DOS box within Windows. In order for potential users to get an idea of what CASES 4 is like and how it operates, the following illustrates the very basics of the software.
The first step is to create a text file containing the questions and CASES Q language commands. It is called Q-language and is similar to standard programming logic. The file can be created with any text editor. It defines the questions, their sequence and any logic that the instrument may require. Here's what a simple form may look like in Q language:
>var<
What is your Name? [red]DO NOT ASK[n] @name---------- <1> male
<2> female @sexHow old are you? <1-99> @age The file is translated by a CASES program called the Questionnaire Translator (QT). Once the instrument has been successfully translated, cases are defined. The translated instrument is executed by the Questionnaire Administrator (QA) for display on a computer screen:
After the data is collected, it is checked and certified (optional). The OUTPUT program is then run to produce an ASCII data file. Additional utilities provide easy transfer to SDA, SPSS, SAS, or Stata statistical analysis programs.
For information on what CASES can do, check out our Common Features page.
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