In writing up the results on a study of three local preschool nurseries for publication, you realize that the analysis is likely to be interpreted by parents and the local media as suggesting that one of these nurseries is far inferior. However, there were several beneficial aspects of that nursery not quantified as part of the initial study, and that information is not available from the other two nurseries to analyze.
Using the scenario compose a professional letter as if you were a graduate student currently faced with the dilemma.