Creative testing is a qualitative and quantitative research practice used to evaluate advertising concepts, visual assets, messaging, and campaign materials with target consumers prior to production or launch. Within the Brand, Concept, and Messaging category, creative testing sits at the intersection of brand strategy and consumer feedback, helping teams validate emotional impact, message clarity, and brand fit before committing significant production budgets. Effective creative testing goes beyond asking whether consumers like an ad. It surfaces the specific elements driving positive or negative reactions, the language consumers use to describe the creative, and the emotional associations the work triggers. When done rigorously, creative testing reduces the risk of costly misfires and gives brand and marketing teams the evidence they need to defend creative decisions to senior stakeholders.