In its first randomized clinical trial within an American Indian Community, Promoting First Relationships significantly improved observed parental sensitivity (using the Parent-Child Interaction Scales) and parents knowledge of child development. These exciting findings can be found at Prevention Science or by emailing us at It should be noted that these findings replicate what we have found in our other randomized clinical trials in foster care (Spieker et al., 2012) and child protective services (Oxford et al., 2016).