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Each item yields scores ranging from 1 (not at all bothered) to 5 (extremely bothered).
Summing the products of the frequency of behaviour by severity weight for each item yields a total score: higher scores indicate greater aggression.
Similar(58)
The item analysis provides clues to how well the content of the item yielded useful information about student ability.
The Roland item yielded a sensitivity of 49% and a specificity of 80% and the prevalence of insomnia was 58%.
Missing data were not replaced, for each SWN-subscale, a missing answer to any item yielded a missing sub-score and, therefore a missing total score.
Comparing bigger shopping baskets of 10,000 items yields a similar result, with Asda and Tesco charging the same for almost three-quarters of their goods.
Not every pairing of items yields a paradox, e.g., 1 and 8 do not.
It is not clear that a long form of 104 items yields a significant benefit over a version with 40% fewer items.
The factor analysis of the 7 items yields one factor explaining 50% of variance.
Summing the unweighted items yields a total score that ranges from 6 to 30.
The sum of the 6 items divided by the number of items yields the total t-score [ 67].
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com