The Perception of Competitiveness Scale (PCS) developed by Carter and Weissbrod (2011) is a likert scale. If you assume that the scale is ordinal and are examining its relation to age or some other ranked data, you should…
A) use a Spearman correlation
B) use a Mann Whitney U test
C) use a Wilcoxon Signed-Rank test
D) use a Pearson correlation

Question

Quizplus · Accepted Answer

Since the PCS is an ordinal scale, the appropriate correlation method to use when examining its relation to age or other ranked data is a Spearman correlation. This method calculates the strength and direction of the relationship between two ranked variables.

The Perception of Competitiveness Scale (PCS) Developed by Carter and Weissbrod