I agree that A/B testing is not the same thing. A real-world comparison of the two different types of experiments: Grocer wants to see the effect of a product

I agree that A/B testing is not the same thing. A real-world comparison of the two different types of experiments: Grocer wants to see the effect of a product demo's effect on sales. They have a worker offer a product sample, then recommend a pairing of products vs offering a coupon for that product. A/B testing. Grocer wants to see the effect of a product's demo on the customer's emotions. He has the demo worker gripe about their boss, or talking positively about the community, then asks the cashiers for followup feedback on the smalltalk at their counters. One of these is OK. The other is seedy.