Be specific about your topic so that you can narrow your search, but be flexible enough to tailor your needs to existing sources.
This is what you should be able to define:
Social Unit: This is the population that you want to study.
It can be:
Time: This is the period of time you want to study.
Things to think about:
Space: Geography or place.
There are two main types of geographic classifications:
Remember to define your topic with enough flexibility to adapt to available data!
Data are not available for every thinkable topic. Some data is hidden (behind a pay-wall for example), uncollected, unavailable. Be prepared to try alternative data.
No matter the subject statistics are limited by both time frame and geography.
Time: Are you looking for information about a single point in time? Do you want to look at changes over time? Do you need historical information? Current information?
Be prepared that the most current statistics may actually be a year or more old! There can be multiple year lags before some information is released depending on how often the information is collected, the time it takes to process and crunch numbers, and the public release schedule.
Geography: Geographical areas can be defined by political boundaries (nations, states, counties, cities) or statistical boundaries (mainly Census geography such as metropolitan statistical areas, block groups, or tracts).
Remember to define your topic with enough flexibility to adapt to available information!
Identify producers/publishers of the data or statistics
Who might produce/capture these data/statistics? (ex: Businesses, governments, advocacy groups, academic institutions).
Many organizations provide online access to data they capture or produce either as downloadable datasets or via APIs (application program interfaces). If you need assistance using an API to download a dataset you have identified, check out our Programming & Software Development Consultation Services.
Nonprofit organizations, academic institutions, governments, etc. will publish data and statistics to inform the public about current trends, projections, new findings, etc. In the case of U.S. government data, you can usually find the data on their website or via a data portal like data.gov.
Not all data producers will make their data publicly available. Remember, data are expensive to collect or may contain sensitive information. In these instances, there may be access restrictions or data use agreements placed on the data. If you have questions about getting access to a specific dataset, please contact the Data Services Librarians at firstname.lastname@example.org.
Search through a research guide
Gelman Library creates and maintains a variety of useful research guides on many subjects. If you know the subject area you want to focus on, try looking through a research guide on your topic.
See also, the subject list within this research guide for subject specific data resources.
For Health Sciences data and statistics, please look at Himmelfarb Health Sciences Library's Research Guides.
Search in a data archive or data portal
Data archives often focus on a specific discipline and can be a particularly good place to start to learn about data trends and popular topics in the discipline. They handle access, documentation, and preservation of data. For example, some data is publicly available for download while other datasets may not be available without a data use agreement.
Data portals provide access to multiple archives, databases, publications, and websites. They are usually multi-disciplinary and allow you to search across all of these platforms at one time. A very popular example is re3data.org
See also, the Data by Type page of this research guide.
Search in a statistics reference resource
Statistics reference resources pull together statistics from multiple sources and allow you to search across them in one location. Consider starting with the list of statistical resources within this guide.
Follow the trail!
Read the literature in your discipline about your topic. Identify statistics and data referenced in these articles. Statistics come from data, so if you see a particular statistic that interests you, look for its source.
Ask for assistance
If you have any questions or need assistance, please contact us!