With regard to logistic regression, which of the following sentences about the R-statistic is false?
A. The R-statistic is by no means an accurate measure and should be treated with some caution.
B. A negative value of the R-statistic implies that as the predictor variable decreases, the likelihood ratio of the outcome occurring decreases.
C. The R-statistic is the partial correlation between the outcome variable and each of the predictor variables.
D. The R-statistic can vary between –1 and 1.
Answer: B
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