Descriptive Statistics & Graphical Displays of Univariate Data

Last updated:
14 Mar 2005

Assumed knowledge

  • Francis Chapter 2 "Exploring the Distribution of a Single Variable"

Descriptive & Graphical Exercise Using SPSS

  • Open up qfsall.sav
  • For each variable, create:
    • the appropriate descriptive statistics for central tendency and spread, e.g.,
      (you will need to decide based on the level of measurement)
      • summarise open-ended responses
      • frequency / mode
      • median
      • mean, SD, skewness, kurtosis
    • an appropriate chart, e.g.,
      (note charts should be edited to create appropriate labels, axes, remove missing values / out of range scores, etc.)
      • bar graph
      • pie chart
      • stem and leaf plot
      • boxplot
      • histogram
      • line graph
      • error bar
  • Explore descriptive statistics and graphical summaries of the following bivariate relationships:
    • Gender and favourite colour
      (nominal by nominal)
      • crosstabs
      • clustered bar graph
    • Psychology student status and exercise
      (nominal by ratio)
      • bar graph (means)
      • means table
    • Physical health and mental health
      (ratio by ratio)
      • correlation
      • scatterplot