Which of the following is true?

A. In logistic regression, the predictors are dichotomous, and the outcome is a continuous variable.

B. When calculating a correlation coefficient between two variables, the scales on which the variables are measured affect the value of the correlation coefficient.

C. It is more difficult to reject a null hypothesis if we use a 10% level of significance compared with a 5% level of significance.

D. The sample size is required to detect an effect size of 0.25 is larger than the sample size required to detect an effect size of 0.50 with 80% power and a 5% level of significance.