Center for Social Research and Data Archives

For Depositors

Instruction for Depositing Data

The Center for Social Research and Data Archives at the Institute of Social Science, the University of Tokyo, established the Social Science Japan Data Archive (SSJDA) for the purpose of supporting social science research on Japan. This archive collects micro data with questionnaires used in various social and statistical surveys, and offers them for secondary use for academic purposes. The SSJDA has made such data available since 1998. (see List of Data)

The SSJDA is currently asking other research organizations to join us in this effort by depositing their micro data in our archive. We hope that many organizations will understand our purpose and collaborate with us. If you or your organization is interested in depositing micro data, please contact us. We will be very glad to talk with you for greater detail.

SSJDA offers micro data to researchers and students with the depositor's permission for data use.

SSJDA always converts the micro data into a form which does not allow identification of individual respondents.
In principle, SSJDA does not offer the micro data to researchers and students without the depositor's permission.
Before the researchers and students are provided with data, they are required to sign the following Agreement which specifies the conditions for using the data.

Benefits to the Depositors

Significance of the surveys will be widely recognized.
A micro data deposit not only contributes to the development of social sciences but also makes the survey widely known as the SSJDA prepares its outline and displays it along with the questionnaire(s) on our Internet web site. The significance of the survey will also be widely recognized as the users are obliged to acknowledge the survey and the depositor in their publications.
We keep micro data in safe place.
Once deposited, micro data are kept in a format that allows their secondary use, so that the data can be retrieved anytime in the future when additional analysis is found necessary. We often hear of problems arising from misplacement of data or a code book. In some cases, these problems make further analysis totally impossible. By depositing data in our Archive, the depositor can not only safeguard the early efforts but also save future trouble.
The depositor can review the survey from alternative perspectives.
The users are also obliged to submit a copy of each work for the depositor. This gives the depositor an opportunity to view the original survey from new perspectives, which will in turn encourage the depositor to find some unrecognized value or room for improvement in the survey. We hope that depositing will help improve the depositor's own research in the future.