is a specific system for gathering information from a single group of respondents by continuously monitoring the advertising, promotion, and pricing they are exposed to and the things they buy.

The answer is "Scanner based research".

Explanation:

A scanner focused testing method allows advertisers to track the exposure and response of a consumer panel to variables like ads, promotions, store displays, packaging, and quality.

This technique is used to buy is considered a total answer because the received outcomes are not conditional on test survey results. The purpose of this method is used to support the framework for marketing decisions.