A Researcher Gave Janis and Her Husband a Bar-Coded Card

Multiple Choice

A researcher gave Janis 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) _____.

A) scanner-based consumer panel
B) obtrusive observation study
C) phenomenological study
D) ethnographic study