Tutorials for SPSS.

Sample Weighting in SPSS

Weighting cases

Within statistics, weighting is used to correct disproportional sample sizes and adjust the collected data to represent the population from which the sample was drawn. For example, we state that the proportion of officials in our sample amounts to 10,5%, while the proportion of officials in the total population only amounts to 8%. With it our sample is not representative, i.e. the frequency distribution of our sample does not match that of the population and estimates for that group may be biased.