I Have The Impression That Some Units Are Missing From The Analysis

By default, invalid surveys or units are not included in the analysis. Such units have a status of 0, 1, 2, 3 or 4, or they are empty units where there is no response from the respondents. All test entries are also counted as invalid units once the collection of real responses from respondents has started. 

In case you want to include all units in the analysis - for which it is difficult to find a good reason in practice - you can specify this by selecting 'All units' in the 'DATA' or 'ANALYSE' tab above the data tables. If you want the data for all units to be displayed in both tabs, the 'All units' option must be selected in both tabs.

The database and analyses are updated on an ongoing basis (more on data updates).

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