2 × 2 Crosstabs, otherwise called 2 × 2 contingency table or 2 × 2 interaction matrices, are data file that consist of two binary variables, one outcome and one predictor variable. They are used to assess whether one treatment or the presence of one particular patient characteristic is at risk of a particular outcome. The methodology is very popular in clinical research. E.g., safety assessments of new medicines make often use of it.
CITATION STYLE
Cleophas, T. J., & Zwinderman, A. H. (2016). Unpaired Binary Data (Chi-Square Test, 55 Patients). In SPSS for Starters and 2nd Levelers (pp. 213–216). Springer International Publishing. https://doi.org/10.1007/978-3-319-20600-4_35
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