Radio One is the largest U.5. radio broadcasting company targeting black Americans today. Radio One staffers are constantly reviewing secondary information looking for any emerging trends in their target market. Potential disadvantages of this research approach include: the questionable quality of the data the high cost of collecting secondary data the length of time it takes to collect secondary data interviewer bias during the collection process the potential for sampling error Question 5 Nonprobability samples: require more expensive marketing research than probabifity sampling include any sample in which little is done to obtain a representative cross section of the population by definition must be representative of the population often start out with random numbers to ensure selection of subjects is truly random offer an easy method for determining sampling error