The findings of this study are published in: Purić, D., Petrović, M. B., Živanović, M., Lukić, P., Zupan, Z., Branković, M., Ninković, M., Lazarević, L. B., Stanković, S., & Žeželj, I. (2023). Development of a novel instrument for assessing intentional non-adherence to official medical recommendations (iNAR-12): A sequential mixed-methods study in Serbia. *BMJ Open, 13*(6), e069978. https://doi.org/10.1136/bmjopen-2022-069978. Please cite accordingly. This component contains complete analytic code to reproduce the results of the iNAR publication, including both data transformations and data analyses. To be able to run the code, please download the [WP2 dataset][1] and place it in the same folder as the analytic scripts. Running the Rmd files will generate the relevant results, and knitting the file will produce the html output. The code can be run in chunks, producing relevant output in the Rmd file itself. If you just wish to view the html file, you can simply download it onto your computer. - `iNAR_item_seelction.Rmd` is the R Markdown file which contains the analytic code used in item selection for the final 12-item version of the instrument, iNAR-12. - `iNAR_item_seelction.html` is the html file which contains the output for the analyses regarding item selection for the final 12-item version of the instrument, iNAR-12. - `iNAR.Rmd` is the R Markdown file which contains the analytic code used for the main analyses of the iNAR-12 publication. - `iNAR.html` is the html file which contains the output for the main analyses of the iNAR-12 publication. [1]: https://osf.io/4qp6z