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Glossary

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Please note that the glossary definitions at present are available in german language only.


Interdisziplinäres Zentrum für Hochschuldidaktik - IZHD, Hamburg

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   / Home / LernStats / Measures of Dispersion / Summary


LernStats
(Chapter 4 - Page 8 / 9)

Summary

Click on the buttons to return to the chapter for the respective measure of variability.

Ordinal scale The Range is only a very rough indicator;, specially with large sample sizes. Farbe
Quartile and Centile are of importance when cannot be calculated.
Interval- and Ratio scale Die average deviation is a less helpful indicator than
Variance ­ the mean square deviation ­gives more emphasis to values that differ strongly from its mean.
The benefit of the standard deviation is, that we can talk about hte deviation in the scale measured (e.g. in years, not in "years squared").



 
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