In-person surveys provide quantitative data on the research topic, enabling detailed, precise measurement with a calculable margin of error.
This method works equally well for uncovering the opinions of the general public and of businesses and institutions, and can easily incorporate product samples or test materials for respondents to review.
The credibility of our results is also grounded in how carefully we frame each question: we approach every topic from multiple angles and use control questions to screen out automatic or careless responses.