Telephone Surveys
Telephone surveys are the best way to obtain a random sample because they
minimize selection bias and permit quotas to be set for sub-populations.
When you want to reach out to a whole community – young and old, sick and
healthy, rich and poor – the telephone is the best survey vehicle.
On-line Surveys
Online surveys are used to measure responses to online interactions,
purchasing, Website choices and other on-line use.
See an example of our
on-line Surveys (will open a new browser)
Mail Surveys
Mail surveys have an inherent risk of self-selection bias; you can never be
sure that those who choose to respond are typical of the whole population.
However, for very long surveys, or those requiring the respondent to read
technical material, mail surveys are preferable.
In-Person
In-person interviewing is sometimes the best choice when respondents will be
asked to look at, taste, sort, or try out products, descriptions,
photographs, diagrams or other visual cues. In-person surveys can be
conducted by the interviewer, or the respondent can complete a questionnaire
without guidance.
Door-to-Door
Door-to-door interviewing is useful when respondents will be categorized by
where they live, and when it is likely many respondents cannot be reached by
phone.
Intercepts
Intercepts are interviews conducted face-to-face where a target audience is
likely to be found. For instance, intercepts can survey office workers in a
business district, shoppers at a mall, tourists at an attraction, or
in-store customers. We place intercept studies throughout the United States
and internationally.
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