Jeff is a professor who teaches advanced statistics courses and also does some outside consulting. When he makes important intellectual contributions on projects on which he consults, he is usually listed as an author, those his involvement in projects can vary as he is often brought in when project leaders are ready to analyze their data and then realize that the need help with statistics. One day, Jeff's institution is contacted by a journal editor who reports that a reader is challenging the legitimacy of a published paper Jeff is listed as an author on. Jeff had a hand in designing and conducting the data analysis in the paper, but not in the actual data collection. What should Jeff do?
