Several methods are used in impact assessment, depending on the nature of the intervention and the available data:
Randomized Controlled Trials (RCTs): Considered the gold standard, these involve randomly assigning participants to intervention and control groups. Cohort Studies: Following a group of individuals over time to assess the impact of an intervention. Case-Control Studies: Comparing individuals with a specific condition (cases) to those without (controls) to identify potential causes. Cross-Sectional Studies: Analyzing data from a population at a single point in time. Systematic Reviews and Meta-Analyses: Aggregating data from multiple studies to draw more robust conclusions.