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Changes for page Statistische Auswertung

Last modified by Carina Enke on 12.12.2025
From version 2.2
edited by Carina Enke
on 12.12.2025
Change comment: There is no comment for this version
To version 3.1
edited by Carina Enke
on 12.12.2025
Change comment: There is no comment for this version

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13 13  {{panel title="Content"}}
14 14  {{toc start="2"/}}
15 15  {{/panel}}
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17 -
18 18  {{/column}}
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20 20  {{/section}}
21 21  
22 22  == Characteristic values for difficulty and selectivity ==
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38 38  The calculation of this correlation includes a part-whole correction (deduction of the affected item’s score from the test score). In addition, for each question, only those results for which participants have submitted an answer will be used for the calculation. Unanswered questions will not be included in the calculation.
39 39  
40 40  If the selectivity is below 0.3, then this question is considered to have a noticeably low selectivity, as it does not differentiate sufficiently in the answers between those participants with weak and strong test results. Negative selectivity may hint at a question that has been understood exactly opposite to the way intended.
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