I helped a friend with an analysis and this will now be published. The analysis only took me two evenings of work and I saw this as a favour to my friend and told them I didn't need authorship in return. In the past, I have helped several colleagues from my own field with analyses and regularly invested similar amounts of time in this and never got authorship in return, which was fine to me. However, this friend now offered me authorship because the analysis is the core of the paper and other co-authors contributed less than I did. The paper is in a completely different field as I am, so it may not add too much to my CV except that my skillset is transferable to other fields. Do you have any advice on whether I should accept this co-authorship?
- Hard to take full responsibility of the paper because I don't know anything about the field
- Perhaps it diffuses the focus of my CV/publication list(?)
- Extra publication/citations etc.
- Shows that my skillset is transferable and acknowledged and valuable by/to others
For context, I just finished the first year of my postdoc. Do you have any thoughts or advice?