The general question of whether Delphi users have learned from Delphi research of the past decade is addressed in this article. Within the wider context of Delphi expansion anddevelopment, specific attention is given to examining the nature and quality of the growing number of Delphi dissertations. Although there are some signs for encouragement, the findings from the sample of dissertationsexamined might also give cause for some concern. Findings raise continuing questions related to excellencein the execution of Delphi studies and also to the concentration of applications of the technique in certain fields. It appears that the future of Delphi could be brighter if users of the technique would be more careful in implementing "quality control.". © 1986. Published by Elsevier.