advertising effectiveness measurement on white paper

advertising effectiveness measurement white paper roi return investment key performance indicators kpis metrics brand awareness recall studies message retention analysis reach frequency consumer perception research purchase intent tracking surveys engagement conversion rate click-through rates ctr viewability assessment placement fatigue a/b testing multivariate experimental design campaign attribution modeling media mix lift spend roas cost acquisition cpa customer lifetime value clv social analytics website sales revenue focus groups eye-tracking neuromarketing market segmentation competitive data insights advertiser dashboards real-time reporting visualization optimization