Update README.md

README.md

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 - If you want to harmonize two psychometric multi-item scales, which have at least some identical items in common, consider NEAT Equating (Non-equivalent Groups with Anchor Tests Equating). 
 - If you only want to harmonize two single-item instruments and you have a split-half experiment varying the two, simply apply the [Equate Package](https://github.com/talbano/equate) directly.
 - If you have a dataset, where all respondents answered both instruments (ideally in random order), then you could consider applying the [calibrated multiple imputation approach](https://doi.org/10.1002/sim.6562).
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+# Funding
+The QuestionLink R-Package was developed with funding from the German Research Foundation DFG ([project number 442494171](https://gepris.dfg.de/gepris/projekt/442494171?language=en)) within [KonsortSWD](https://www.konsortswd.de/en/) as part of the [(German) National Research Data Intrastructure (NFDI)](https://www.nfdi.de/?lang=en).