The result of using a parametric test with data transformed into ranks:
A)will be just as accurate as either the ordinary parametric test or the rank-order test
B)will be slightly less accurate as either the ordinary parametric test or the rank-order test
C)will require a smaller sample size to derive an accurate result
D)will require a larger sample size to derive an accurate result

Question

Quizplus · Accepted Answer

Transforming data into ranks and then applying a parametric test typically results in a slight loss of information compared to using the original data with a parametric test or applying a non-parametric test directly to the ranks. This is because the rank transformation simplifies the data, potentially ignoring some of the nuances captured by the original values.

The Result of Using a Parametric Test with Data Transformed