This dataset example introduces researchers to two-way Analysis of Variance (ANOVA). Two-way ANOVA is an extension of one-way ANOVA that allows researchers to examine the influence of two different categorical variables on one continuous variable. Two-way ANOVA lets researchers assess the main effect of each categorical variable on the continuous variable in question as well as the interactive effect of the two categorical variables combined. This example uses a subset of data from the Integrated Postsecondary Education Data System (IPEDS) at the National Center for Education Statistics, 2012 to examine whether college graduation rates in the United States differ across types of university as well as across regions of the country. This allows for comparisons of college performance across both variables. The sample dataset has ...
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National Center for Education Statistics, United States Department of Education. (2012). Integrated Postsecondary Education Data System [Data file]. Available from http://nces.ed.gov/ipeds/datacenter/
Integrated Postsecondary Education Data System (IPEDS) 2012
National Center for Education Statistics, United States Department of Education
Postsecondary institutions that participate in the federal student financial aid programs
United States Department of Education
For 2011-2012, the IPEDS sample consisted of 7,479 Title IV postsecondary entities. The data was collected through a web-based survey.
- Rutherford, A. (2006). ANALYSIS OF VARIANCE (ANOVA). In V. Jupp (Ed.), The SAGE Dictionary of Social Research Methods. (pp. 4–5). London, England: SAGE Publications, Ltd. Retrieved from http://dx.doi.org/10.4135/9780857020116.n3
- Wahed, A., & Tang, X. (2010). Analysis of Variance (ANOVA). In Neil J. Salkind (Ed.), Encyclopedia of Research Design. (pp. 27–30). Thousand Oaks, CA: SAGE Publications, Inc. doi: http://dx.doi.org/10.4135/9781412961288.n11
- Ellen R. Girden (Ed.). (1992). ANOVA. Thousand Oaks, CA: SAGE Publications, Inc. doi: http://dx.doi.org/10.4135/9781412983419
Grad Rate - All
Grad Rate - Men
Grad Rate - Women