From Research Training to Scientific Advancement-Contributions from the Implementation Research Institute: An Introduction to the Special Issue.

The special series is designed to provide examples of funded implementation research conducted by alumni of the first four cohorts of the Implementation Research Institute (IRI). The introduction links the six substantive papers to the conceptual and methodological challenges laid out in a 2009 publication in this journal which led to the IRI training program in the emerging science of implementation with a special focus on behavior health settings. The 7th paper in the series illustrates an innovative evaluative approach to design and measurement of IRI fellow publications and grants informed by the training program such as bibliometrics. The introduction also notes some elements identified in the 2009 foundational paper not represented in these papers such as costs as well as important developments and foci in the decade since 2009 such as de-implementation, sustainability, dynamic adaptation processes, and hybrid designs that need to be an integral part of training programs in implementation research.