Centering Historical Oppression in Prevention Research with Indigenous Peoples: Differentiating Substance Use, Mental Health, Family, and Community Outcomes.

The purpose of this pilot study was to understand how historical oppression relates to changes in outcomes for people who participate in the culturally grounded Weaving Healthy Families (WHF) program (i.e., alcohol and drug use, symptoms of anxiety, parenting practices, and communal mastery [CM]). This nonexperimental and longitudinal design used repeated measures regression analysis and generalized estimating equations (GEE) to examine postintervention changes according to reported levels of historical oppression among 24 participants in eight families. How do postintervention changes differ for WHF participants reporting lower and higher levels of historical oppression? Results indicated that participants reporting lower historic oppression reported greater postintervention improvements as indicated by declines in alcohol use, anxiety, and poor parental monitoring. All participants reported increases in CM, regardless of the level of historical oppression. Given historical oppression drives psychosocial conditions, such as substance abuse, mental health, and family challenges, settler colonial oppression must be addressed within social service interventions. Social service providers must work redress historical oppression rather than replicate them. The WHF program holds promise to center structural determinants in social service programs. Future inquiries assessing longitudinal changes in perceptions of historical oppression change and how they are associated with psychosocial outcomes are needed.