The mail survey is a research method which Nikkei Research adopts as frequently as the Internet survey. The annual number of surveys and handled samples are as large as those of the Internet survey. The number of cases in which a mail survey is utilized has been increasing to conduct a customer survey after the enforcement of the Private Information Protection Law.
Nikkei Research conducts and manages surveys under the management system to handle the mail survey efficiently and safely enough to ensure the protection of private information.
- Respondents’ private information is not included in the questionnaire. The purpose of this is to prevent an individual from being identified from the questionnaire.
- If it is necessary to check whether a questionnaire is returned from individual samples and specific targets, Nikkei Research manages the situation based on IDs, using barcodes.
- Nikkei Research has introduced the reward sticker as a means of giving respondents rewards. Nikkei Research asks respondents to return the reward sticker on which the delivery address for the reward is written together with the completed questionnaire. When Nikkei Research sends the reward, it uses the sticker on which the address for receiving the reward is written. This mechanism prevents the respondents’ private information to be retained in Nikkei Research.
