The design of any survey is primarily based on the required information. An added advantage of working with a company that creates custom research plans for each survey is that you can be confident the questions are aimed at uncovering what you need to know—not just what you want to hear.
QUALITATIVE SURVEYS FOR MAXIMUM DATA QUALITY
Even with larger numbers of respondents or data sets, new data-detection technologies are paving the way for high-scale qualitative studies to be conducted within very reasonable timeframes.
Telephone-based qualitative surveys are often preferred, as they allow for truly random and representative samples, making them the most reliable method for collecting high-quality data.