Topic 7: A – Numeric Summaries by Groups

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.

• All Available Transcripts – SPSS Tutorials

• DATASET USED:
  • PULSE_STEP3.SAV

• SPSS OUTPUT CREATED:
  • Topic7ANumericSummariesbyGroups.SPV
• 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

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