Final answer:
The purpose of rank-ordering the difference scores in the Wilcoxon Signed-Rank Test is to determine the significance of the difference scores.
Step-by-step explanation:
The purpose of rank-ordering the difference scores in the Wilcoxon Signed-Rank Test is to determine the significance of the difference scores.
The test uses the ranks of the difference scores to calculate the test statistic, which is compared to a critical value to determine if the difference is statistically significant. By rank-ordering the difference scores, we can compare their magnitudes and determine their significance.