Reasons for citing the frameworks based on the response to a questionnaire sent to corresponding authors. The frameworks are the Pathway Classification (Hulme et al. 2008), the Unified Framework (Blackburn et al. 2011), and EICAT (Blackburn et al. 2014; Hawkins et al. 2015). The categories Negative, Supportive, Personal Influence, Creative, and Classic are based on Shadish et al. (1995). See Suppl. material 2.2 for a copy of the questionnaire and Suppl. material 2.6 for the full results and how the questions map on to different categories.