The study was conducted primarily through 37 in-depth semi-structured interviews, which were recorded and transcribed verbatim(see details in Appendix A).
There was 37 interviews, with 29 in Finnish and 8 in English for the interviews. This is a small sample, and there is not much detail for the demographics that are beyond just language. This makes me believe that the findings may not generalize to other companies or populations outside the context of this.