Question

Maximum value of Rank Correlation coefficient is_____
a. 0
b. 1
c. 2
d. -1

Answer 1

Explanation:

The Spearman correlation coefficient, ρ, can take values from +1 to -1. ρ of -1 indicates a perfect negative association of ranks. The closer ρ is to zero, the weaker the association between the ranks.

Answer 2

The coefficient is 1.

• It is a semi-parametric, rank correlation metric.
• It describes the statistical dependence among the rankings of two specific variables.
• The value in such a metric might be anywhere between +1 and -1.
• Here the maximum value is +1.
• A 100% positive correlation between the ranks is indicated by the maximum value.