The Shopper Engagement Study is comprised of two concurrently executed research modules.
The core methodology includes a pre- and postshopping interview format with 2,400 shoppers that is consistent with the execution of the 1995 Consumer Buying Habits Study, allowing POPAI to calculate key purchase-decision metrics that are comparable with those from the 1995 initiative. The secondary research model is highdensity
EEG data. When groups of neurons are activated in the brain, a small electrical charge is generated, resulting in an electrical field. EEG is a method that is used to measure these fields by placing electrodes on a person’s scalp while instore—the measured signals are then amplified for analysis. These electrical fields can be interpreted
and projected onto a high-resolution, 3-D representation of a brain. The result is the ability to determine what areas of the brain are activated at specific moments.