Several methods are employed in attribution studies, including:
Cohort Studies: Follow a group of people over time to compare the incidence of disease between those exposed to a risk factor and those not exposed. Case-Control Studies: Compare individuals with a disease (cases) to those without (controls) to identify risk factors that may have contributed to the development of the disease. Cross-Sectional Studies: Assess the prevalence of disease and exposure at a single point in time to find associations.