Subject Guides: Data Repositories: Searching for Data

Searching for Data

Before starting a search for existing data, consider what type of data you need (e.g., structured or unstructured, data format), the sample population, when and where the data was created, and the appropriate methodology for your research question or hypothesis.

As you come across potential datasets to reuse, also ask yourself the following:

How do I access the data?
- Is there an application process?
- Are there associated fees?
- Will I need to obtain Institutional Review Board (IRB) approval to use this data?
How long will it take for me to obtain the data?
Are there restrictions on publishing on the data?

Data Finding Slides

Finding Data: The NYU Data Catalog and More
This slide deck supports a past workshop on techniques for locating data for secondary research. It provides an overview of the data sharing environment and related regulations, and notes some common pitfalls in the data finding process.

Reusing Data

Do I need Institutional Review Board (IRB) approval for a project that uses existing data or secondary analysis?
To abide by US federal regulations on research with human subjects, you may need to request IRB review for your project before you begin analyses. This flow chart will help you decide whether you will need IRB review and approval.

Interactive Decision Tree
This REDCap tutorial will guide you through relevant questions to help you decide whether you are required to submit your project for IRB review if using secondary data.