SHOPPER INTERCEPTS   Shopper intercepts are excellent for measuring advertising success, new product acceptance and vehicle trim level matrix. Shopper intercepts are normally conducted at shopping malls or shopping areas.   RDS has extensive experience conducting nationwide Shopper Intercept studies, both for large and small sample sizes.    RDS is staffed with highly trained, experienced, professional interviewers. With their professional approach, and ability to probe without leading, our interviewing staff is able to provide understanding behind the respondent’s quantitative ratings.