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Binary Data
(redirected from Dichotomous Data)

   Also found in: Encyclopedia 0.01 sec.
Binary Data
Data in an ‘either-or’ format, i.e., in two mutually exclusive categories
Examples Alive/dead; sick/well; pregnant/not; high/sober; benign/malignant


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The original model developed by Georg Rasch (1960/1980) was proposed for analyzing dichotomous data.
Pair-wise comparisons were performed using t-tests for interval data, Mann-Whitney tests for ordinal data and Chi-squared tests for dichotomous data.
Statistical analysis was performed by using a Mann-Whitney U test for nonparametric data and a Pearson [chi square] for dichotomous data.
 
 
 
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