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A combined survey methodology includes several survey data collection methods – telephone, mail, web and face-to-face surveys. Because each of the mentioned methods has its own drawbacks and limitations, researchers are increasingly combining different approaches. The goal of combining survey methodologies is to collect data of the highest quality, while keeping costs lower than is the case with any of the individual methods.
Different methods can be combined in different research stages, in general that refers to the recruitment stage or data collection stage. In the first case, recruitment employs a different method than data collection; in the second case, the data is collected by using different methods. That, for example, means that different survey methodologies are used for different survey stages, different subsamples, different data collection waves in panel research, etc.
Three key reasons for combining methodologies:
A combined survey methodology greatly lowers expenses, saves analysis time and increases the representability of collected data.
1KA enables the combining of data that was gathered using different survey methods. Although in its essence lies a web survey solution, it can also be used for entering data from paper questionnaires or carrying out telephone surveys. 1KA users can, that way, collect higher quality data with lower research costs.