A researcher gave Jaunita and her husband a bar-coded card,like a frequent-shopper card,that they give to the checkout clerk at the grocery store.Their code number is coupled with the purchase information recorded by the scanner.This family is participating is a(n):

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The scenario describes a scanner-based consumer panel, where participants are given unique bar-coded cards to use during purchases, and their purchase information is tracked by a scanner. This method is commonly used in consumer research to collect data on purchasing behavior. Obtrusive observation, phenomenological study, and ethnographic study are different research methods that involve different data collection techniques.

A Researcher Gave Jaunita and Her Husband a Bar-Coded Card,like