Topic 7: A – Numeric Summaries by Groups

Published: January 27th, 2015

Category: Learning Statistical Software, SPSS Info and Tutorials

CO-7: Use statistical software to analyze public health data.

Video (3:29)

The following video illustrates exploratory data analysis in Case CQ (or QC) where we wish to obtain numerical (and graphical) summaries of a quantitative variables within the levels of a categorical variable.  Here we will use EXPLORE to accomplish this task. The following files are associated with this video.

  • Menus and Steps Used:
    • Double-click on the SPSS dataset (STEP3) to open SPSS with that data loaded
    • Note: Explore can obtain histograms, boxplots, and QQ-plots in addition to the numeric summaries which makes this a very nice tool!
    • Analyze – Descriptive Statistics – Explore
      • Drag quantitative variables into the Dependent list
      • Drag categorical variables into the Factor list
      • In STATISTICS – check percentiles if the quartiles are needed
      • In PLOTS – select histogram and normality plots, if desired
      • Decide whether to display staistics or plots or both
      • Click OK
    • Save SPSS output by going to the output and File – Save or by closing SPSS and following the prompts

This document is linked from our main SPSS page under Software.