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Two-Way Scatter Plot and the World DataBank (2012): Gross Domestic Product Per Capita and Average Life Expectancy

By: The Odum Institute Published: 2015 | Product: SAGE Research Methods Datasets
Methods: Scatterplots
Data Type: Time-series
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This dataset example introduces researchers to two-way scatter plots. Two-way scatter plots, often simply called scatter plots, allow researchers to explore graphically the relationship between two continuous variables. This example uses a subset of data from the World Bank’s World DataBank online tool. It looks specifically at the relationship between a country’s Gross Domestic Product per capita and its average life expectancy.

In this example, readers are introduced to how to produce and interpret two-way scatter plots. The sample dataset has been cleaned and organized to make this example easier to follow. Interested readers should read the full documentation for the dataset before using it for research (, including the online tutorial explaining how to access country-level data (

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About This Dataset
Data Source Citation

The World Bank. 2012. World DataBank [Data file]. Retrieved from

Full title of originating dataset

World DataBank

Data author(s) and affiliations

The World Bank

Dataset source website address

Data Universe

All countries

Funding sources/suppliers

World Bank Group

Data collection dates


Unit of analysis


Location covered by data


Links to SRM content
  • Fox, J. (2004). Scatterplot. In Michael S. Lewis-Beck, A. Bryman, & Tim Futing Liao (Eds.), The SAGE Encyclopedia of Social Science Research Methods. (pp. 1003–1005). Thousand Oaks, CA: Sage Publications, Inc. doi:
  • The Scatterplot Matrix (1998). In William G. Jacoby (Ed.), Statistical Graphics for Visualizing Multivariate Data. (pp. 39–54). Thousand Oaks, CA: SAGE Publications, Inc. doi:
List of variables




Gross Domestic Product per capita


Percent access to Internet


Average life expectancy