QuestionLink
The same substantive concepts are often measured with different instruments across different surveys; often as single-question instruments which differ in question wording or their response scales. QuestionLink thus provides recoding scripts with which measurement instruments for selected concepts can be made comparable. QuestionLink offers such scripts for all measurement instruments that the surveys listed below have used to measure the selected concepts. The focus of QuestionLink thereby lies on latent constructs, such as interest, attitudes, subjective evaluations, or values.
The QuestionLink R-Package is now available. Use the QuestionLink automation technology in your own projects!
QuestionLink harmonizes German measurement instruments from the following survey programs:
Methodology and technological information
- Explainer video (YouTube; 4:46 min)
- Frequently asked questions (FAQ)
- QuestionLink Engine: A methodological and technical Primer on the QuestionLink Engine (PDF) (644 kB)
The document describes how the QuestionLink Engine we developed in R harmonizes the instruments based on response data from all waves of the survey programs. - Blog series: Adventures in ex-post Harmonization
The series discusses issues in ex-post harmonization in short, easily digestable posts. Several posts focus on equating, the method behind QuestionLink.
Development and Funding
QuestionLink was developed in the context of our integrated survey and data infrastructure (IEDI). QuestionLink recieves additional funding from the German Research Foundation DFG (project number 442494171) within
KonsortSWD as part of the (German) National Research Data Intrastructure (NFDI).
