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- Delete an interval with encounters entered (but it can be made inactive)
- Change a fixed interval to a non-fixed interval or vice-versa
- Remove a variable group once data is collected on at least one variable that is part of the variable group
- Cannot change the Baseline interval once data is entered for baseline
Project Configuration:
- Add/remove the following features from a project
- Randomization
- Screening
- Remove sites in which subjects are enrolled
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- The following variable attributes:
- Variable name
- Variable description
- Data Entry Prompt
- Answer Suffix
- Variable Code
Tip StudyTRAX will automatically change all references to the variable code
- Variable type between radio button and pick list
- Increase the length of a text variable
- Increase the range of the min/max of a numeric variable (can decrease the min and increase the max)
- The number of lines of text and memo variables
- Add/modify/remove the default value
- The required attribute of a variable
Info This change may affect subjects' completion status
- Active/Inactive
- Exportable/non-exportable
- Pick list option names
- Add pick list options
- Add missing values
- Variable's layout
- Add variables
- Add/change the dependency
- Modify the variable group's layout
- Change the variables' display order
- Change the variable group name
- Change any of the layout definitions (e.g., page break, variable numbers)
- Add/modify a numeric calculation variable
Info The value of a numeric calculation is determined at the time of export
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- Add/remove project features, except screening and randomization
- Add/modify/delete subject reports
- Add/modify/delete data sets, filters, workbench reports
- Cannot change Sequence by Site for the Project ID Generation once subjects have a generated Project ID
Medications:
- Add/modify medications
- Delete medications that have not been used