This online calculator addresses
the issue of objectivity in the choice of proper sizes of association’s strength between
categorical variables, applying Cramér’s coefficient V. The calculator could be used to solve two different tasks:
to calculate Cramer cutoff values or to calculate strength of association for an observed
Cramer value. So in order to use it either effect sizes or observed Cramer's V value must be provided.
The input cells are initially populated with test values, which could be changed. If you wish to not see the results for one of the tasks, just erase the corresponding input values. All inputs are automatically
validated. The calculator's method and all details are published in the following paper:

Cite: Haralampiev, K., D. Blagoev, 2025. Reconsidering Cramér’s Measure of Association. AIP Conference Proceedings

Here, the number of categories of the independent and
dependent variable are input. These two fields the always needed for both posible ways of using
the calculator. They must be integers greater than 1.

To calculate the Cramer cutoffs,
input here the effect size values, which must be
between 0 and 1. Also they must be
in monotonous increasing order. The pre-set values are recommended for use.

To estimate the effect size,
input the Cramer's coefficient
as calculated from the data.
Values for observed Cramer's V
must be between 0 and 1.

When all needed inputs are set, press "Calculate" to validate all
cells and get the results. Note, that the Cramer's coefficient
can not have values above 1