Final answer:
In the hierarchy of effects model, after a consumer becomes aware of a product, they gain knowledge about it, which leads to liking, preference, and eventually purchase.
Step-by-step explanation:
The hierarchy of effects model in marketing outlines the stages a consumer typically goes through before deciding to purchase a product or service. After awareness, the model suggests that a consumer develops knowledge about the product. This knowledge allows them to form an opinion based on information about the brand or product's features, benefits, and potential disadvantages.
Following knowledge, the next steps in the hierarchy are liking, preference, conviction, and finally purchase. It's important for marketers to understand this progression to effectively guide consumers from initial awareness to the final purchase decision.