Final answer:
Interviewing or surveying is indeed the most common method for gathering primary market data, providing firsthand insight from large numbers of individuals or in-depth individual perspectives.
Step-by-step explanation:
True, interviewing or surveying is the most common approach used to gather primary market data. These methods allow researchers to collect firsthand information directly from subjects. Surveys, for instance, involve questioning subjects about their behaviors and opinions, usually offering a level of anonymity. They can be conducted through various means such as online, over the phone, by mail, and face-to-face. These surveys are ideal for collecting data from a large number of individuals simultaneously.
Interviews offer a more in-depth approach to data collection, where the researcher can delve deeper into a subject's experiences and opinions. Field research can also involve interviewing, such as a military sergeant collecting data by interviewing an Iraqi police officer, as shown in Figure 13.1. The data collected from interviews and surveys are crucial for constructing a comprehensive picture of the market landscape and informing decisions.