“…Our goal for this special issue is to introduce SE approaches, highlight their applicability in various domains, and showcase methodologies that enhance ecological validity, facilitate translation, and promote equitable outcomes. We begin with an article that introduces two explanatory models—orienting the audience to EST and the ecological metaphor from community psychology (Scarpa & Trickett, 2022). Then, we present conceptual articles that apply ecological theory to program development across diverse settings and domains, including communication and psycholinguistics in health care (Hernández-Rivera et al, 2022), training systems for clinical supervision (Terepka et al, 2022), wise interventions in higher education (i.e., theory-based strategies that work alongside existing curriculum to help students navigate their social world; Laiduc & Covarrubias, 2022), and treatment paradigms in the juvenile justice system (Snyder & Duchschere, 2022).…”