Datenerhebung: Übersicht / Data Collection: Overview

Overview: Steps for using an IRTlib Player for Data Collections

Once a Study has been created and configured using the IRTlib Editor, a finalised Version of this configuration must be created. Versions seal and finalise all configurations and have a unique version number (referred to as a Revision). The use of Revisions makes the administration of data collections with the IRTlib Editor and IRTlib Player reproducible, as the revision number of a configuration is also saved in the data sets.

  • Check Configurations:Before finalising and sealing a version, it is suggested to check all settings again. The IRTlib Editor provides an additional Validation feature for this purpose.

  • Create Sealed Version: If no further changes are required, the version can be sealed. This is done by selecting the changes that have not yet been saved and clicking on the lock symbol in the IRTlib Editor in the Publish view, in which the Study revisions are displayed.

  • Export version: Versions of studies that are available in the IRTlib Editor can be exported. It is necessary to export the configuration before it can be used with the IRTlib Player. When exporting, the complete study configuration including the imported CBA ItemBuilder content is downloaded as a ZIP archive.

  • Import Study into IRTlib Player: Exported versions of studies from the IRTlib Editor can be imported into an IRTlib Player for use. There is an automatic mode for individual Studies. If several Studies are to be used simultaneously in one IRTlib Player, this can be configured manually.

  • Testing the Study: Before the actual data collection can begin, each configuration should first be tested with synthetic test cases (i.e. systematically).

If problems are still detected in an exported study, it is possible to return to the preparation (see Preparation of studies and Preparation of survey parts), modify the study definition and the configuration of the test parts, create another sealed version and continue with the modified configuration.