Strengthening the Science and Practice of Implementation Support: Evaluating the Effectiveness of Training and Technical Assistance Centers

Hundreds of millions of dollars are spent each year by U.S. federal agencies for training and technical assistance (TTA) to be delivered by training and technical assistance centers (TTACs) to "delivery system organizations" (e.g., federally qualified health centers, state departments of health, substance abuse treatment centers, schools, and healthcare organizations). TTACs are often requested to help delivery system organizations implement evidence-based interventions. Yet, counterintuitively, TTACs are rarely required to use evidence-based approaches when supporting delivery systems (in the use of evidence-based programs). In fact, evaluations of TTAC activities tend to be minimal; evaluation of technical assistance (if conducted at all) often emphasizes outputs (number of encounters), satisfaction, and self-reports of knowledge gained-more substantive outcomes are not evaluated. The gap between (a) the volume of TTA services being funded and provided and (b) the evaluation of those services is immense and has the potential to be costly. The basic question to be answered is: how effective are TTA services? This article introduces the special issue on Strengthening the Science and Practice of Implementation Support: Evaluating the Effectiveness of Training and Technical Assistance Centers. The special issue promotes 1) knowledge of the state of the art of evaluation of TTACs and 2) advances in what to evaluate in TTA. A major goal of the issue is to improve the science and practice of implementation support, particularly in the areas of TTA.