contingency table
cross tabulation , auch: crosstab

In contingency tables, to control for a variable we look within its categories.

There may also be more than two variables, but higher order contingency tables are difficult to represent on paper.

For dichotomous risk factors, contingency table methods can be used.

In social research this is the basic structure of the cross-tabulation or contingency table.

It can reach values closer to 1 in contingency tables with more categories.

The trend test is applied when the data take the form of a 2 x k contingency table.

A three-by-three contingency table was constructed based on the absolute calls.

Often, purely categorical data are summarised in the form of a contingency table.

The distribution of genotype counts can be put in a 2 x 3 contingency table.

Using variables from the contingency table above, the calculation is as follows:

Whether phenomena are qualitative or quantitative, a classification leads to a contingency table.

This situation is illustrated by the following contingency table:

For hand calculations, the test is only feasible in the case of a 2 x 2 contingency table.

Most uses of the Fisher test involve, like this example, a 2 x 2 contingency table.

Consider a table of observations (taken from the entry on contingency tables):

Ratios between two proportions are not, however, regularly used in analysing contingency tables.

Poisson regression for contingency tables, a type of generalized linear model.

Such a contingency table is shown below.

The techniques to be presented in this chapter are designed to examine the relationship between three variables in a contingency table.

The techniques of control used in contingency tables involved literally holding a variable constant by considering its categories one at a time.

A 2 x 2 contingency table is used at each interval of k comparing both groups on an individual item.

The pivot operation in spreadsheet software can be used to generate a contingency table from sampling data.

The elements of the contingency table will be the number of times the coin for that row came up heads or tails.

Fisher's exact test is a statistical significance test used in the analysis of contingency tables.

Some procedures used in this context can be used in dealing with contingency tables.