Behavior Scan maintains a household panel in each of several cities who record their purchases in a diary.

Name: Behavior Scan maintains a household panel in each of several cities who record their purchases in a diary.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

BehaviorScan, operated by GfK (formerly by IRI), primarily tracks consumer purchases and exposure to advertising through electronic means, such as set-top boxes for TV viewing and loyalty cards for shopping, rather than relying solely on diary entries.

Behavior Scan Maintains a Household Panel in Each of Several