Online: used more frequently than any other method. Early user and advocate of online survey research. Outstanding results for evaluation, tracking and strategic research.
Telephone: used in situations where the target respondent cannot be effectively contacted online (e.g., high level executives, regional and/or language requirements).
In-person methods: mall intercepts, store/venue exit interviews and other “field” methods are used when direct contact with the respondent is required (e.g., taste test), or when immediate reaction to the environment is necessary, or when it is inefficient to reach the target using any other method.
Mail surveys: limited use of mail surveys, primarily as part of “multi-mode” interviewing.