Longitudinal Evaluation of the Neurosequential Model of Therapeutics with Adoptive Families in Tennessee.

Purpose: This study evaluated effectiveness of the Neurosequential Model of Therapeutics (NMT) with adoptive families who received post adoption services in Tennessee.

Methods: Researchers obtained a sample of 552 families who received post adoption services in the U.S. state of Tennessee. Most families (77%) had adopted children through public child welfare services. A quasi-experimental design examined wellbeing outcomes for an NMT group (n = 319) versus a services-as-usual (SAU) group (n = 233) in intent-to-treat analyses. Then, the SAU group was contrasted to an NMT subgroup that had high adherence to the NMT model (n = 109) in an analysis of treatment-on-the-treated.

Results: Intent-to-treat models indicated no differences on outcomes between the NMT and SAU groups. However, the results of treatment-on-the-treated analyses showed slightly greater reduction on the Behavior Problems Index over time for the NMT with high adherence group as compared to SAU.

Discussion and conclusion: Adoptive families may face challenges that could be addressed through developmentally sensitive, trauma-informed services, such as NMT. The results of this study suggest that the NMT might benefit adoptive families if greater attention is paid to implementation adherence, or fidelity.