Science Advances

Supplementary Materials

This PDF file includes:

  • Supplementary Text
  • fig. S1. Team members and their respective contributions (schematic).
  • fig. S2. Distribution of the count of contributions by position (teams of six).
  • fig. S3. Count of contributions by team size.
  • fig. S4. Share of authors who fulfill ICMJE authorship criteria.
  • table S1. Summary statistics for Study 1.
  • table S2. Authorship positions and contributions.
  • table S3. Authorship and contributions for teams with 2, 6, and 10 authors.
  • table S4. Incidence of alphabetical authorship.
  • table S5. Authorship position and corresponding author status.
  • table S6. Corresponding author status and contributions.
  • table S7. Predicted likelihood of particular contributions and predicted contribution counts.
  • table S8. Author contributions by position and team size.
  • table S9. Types of contributions by position and team size.
  • table S10. ICMJE authorship criteria fulfilled by position and team size.
  • table S11. Summary statistics for Study 2.
  • table S12. Regression analyses of survey responses on general opinions regarding contribution statements.
  • table S13. Regression analyses of survey responses on specific articles.
  • table S14. Illustrative responses to the question “Why would you not pay more attention to contribution statements?”
  • table S15. Illustrative responses to the question “Do you have any other comments on this topic that you would like to share? How do you think contribution statements could be improved?”
  • table S16. Authorship positions and contributions controlling for quantity and quality of previous publications.
  • table S17. Authorship positions and contributions using data from papers in the top 10% of article impact (citations).
  • References (36–38)

Download PDF

Files in this Data Supplement: