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Correction of the significance level when attempting multiple transformations of an explanatory variable in generalized linear models.

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Academic year: 2021

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Table 1 Strategy for dichotomous transformations: values of the cutpoints c k according to the number of
Table 2 Strategy for the categorical transformations in three classes: values of the cutpoints (c k 1 and c 2k ) for all transformations Number of transformations c 1 k c 2k 1 q 1/3 q 2/3 2 q 1/4 q 3/4 3 q 1/4 q 1/2 4 q 1/2 q 3/4 5 q 2/5 q 4/5 6 q 1/5 q 3/
Table 3 Strategy for different categorical transformations:
Figure 3 Power for an effect of a categorical transformation in five classes defined by cutpoints at the quintile.

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