What happens when an ROC curve is plotted using z-scores?
A) the ROC curve becomes a straight line
B) the ROC curve becomes more shallow
C) the ROC curve becomes straight and shallow
D) the ROC curve cannot be represented using z-scores

Question

Quizplus · Accepted Answer

Using z-scores does not change the fundamental shape of the ROC curve; it remains a curve. However, plotting with z-scores can standardize the scale, making it easier to interpret, but it does not alter the curve into a straight line or affect its steepness inherently. The ROC curve's shape is determined by the true positive rate vs. the false positive rate at various threshold settings, not the scale of the scores used.

What Happens When an ROC Curve Is Plotted Using Z-Scores