Assess ability to apply behavior‑change theories (e.g., Transtheoretical Model, Social Cognitive Theory, Self‑Determination Theory, COM‑B, Health Belief Model) to design tailored physical activity interventions for sedentary adults with cardiovascular risk factors. Test tasks include selecting and justifying theoretical frameworks, identifying behavioral determinants and barriers, choosing appropriate behavior change techniques and delivery modes, creating individualized goal‑setting, monitoring, and relapse‑prevention plans, integrating safety/comorbidity and equity considerations, and specifying measurable outcomes and evaluation methods.