Exercise: Checking student data

The file res0102.sav contains measurements made from one another by a group of biomedical science, medical, nusrsing, physiotherapy, and radiography students. Each measurement was made twice, by different observers.

Download the file and read it into SPSS.


1. Using SPSS, look at the frequencies for the head circumference data. What two characteristics of the data does this reveal?

Check suggested answer 1.

2. Draw histograms of the head circumference data. How does the information revealed compare to that shown using frequencies?

Check suggested answer 2.

3. What could we do about the problems with head circumference?

Check suggested answer 3.

4. Find frequencies for sex. What do you notice?

Check suggested answer 4.

5. Try a tabulation of the first observation of the subject's sex against the second. You can do this using Descriptive Statistics, Crosstabs. What do you notice about the data? Why do you think it happened?

Check suggested answer 5.

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Last updated: 16 October, 2006.

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