MAXQDA differentiates between “document variables” and “code variables”:
Document variables are associated with an entire document, (e.g. the person interviewed in an interview transcript). In these cases, you can assign socio-demographic information like gender, age, education level, etc. that can then be analyzed in conjunction with the actual text.
In the following example, the age and gender of all five respondents was noted, in addition to whether they were members of an NGO:
The development of code variables in MAXQDA makes it possible for you to define variables within a document and to use their values as selection criteria during the evaluation process. In this way, you can, for example, activate codes by defined criteria.
The List of Document Variables and the List of Code Variables
MAXQDA allows you to add variables to each document and code.
Two views are available from which to manage variables: The List of Variables and the Data Editor. In the EList of Variables, all variables defined within the project are listed in a table. The Data Editor presents the data table as a square matrix showing “Rows x Columns”, similar to a statistics program. The documents or codes are displayed in the rows of the table, with the variables being displayed in the columns.
The List of Document Variables can be opened via Variables > List of Document Variables.
When you open the List of Document Variables in a newly created project, the system variables displayed in the image are already defined:
- Document group – contains the name of the document group that a particular document is a part of
- Document name – contains the name of the document
- Creation date – contains the date the document was imported/created
- Number of coded segments – contains the number of coded segments in the document
- Number of memos – contains the number of memos in the document
- Author – the user that was logged in when the document was imported or created
The system variables are indicated with a red symbol in the first column of the list of variables. System-defined variables cannot be modified or deleted. User-defined variables are indicated with a blue symbol in the first column - these variables can be modified or deleted as desired.
The List of Code Variables
The List of Code Variables can be opened via Variables > List of Code Variables.
When you open the List of Code Variables in a newly created project, the system variables displayed in the image are already defined:
- Position – Position of the code in the "Code System"
- Parent code – Names of the codes at the following (higher) level (if applicable)
- Code – Code name
- All coded segments – Number of segments coded with this code
- Activated coded segments – Number of segments coded with this code in current activated documents (code needs to be activated)
- Author – User who created the code
- Creation date – Date and time at which the code was created
- All coded segments % – Relative frequency of “All coded segments”
- Activated coded segments % – Relative frequency of “Activated coded segments”
- Documents – Number of documents in which the code appears
Sorting the List of Variables
The list of variables can be sorted in alphabetical or reverse alphabetical order just like any other table in MAXQDA. Simply click once or twice on the column header you would like to sort by.
Both the List of Document Variables” and the List of Code Variables can be managed from the toolbar, which contains identical symbols for both lists.
Import data – allows import of spreadsheets in XLS/X format.
Data editor – switches from the Variable view to the Data view.
Liste of variables – switches from the Data view to the Variable view.
New variable – creates a new variable.
Delete variable – deletes selected variable.
Transform into binary variable – converts selected variables into dichotomous variables.
Transform into string variable – converts selected variables into string variables.
Statistic of document-/code variables – generates a frequency table or chart for the indicated variable.