What Is Spearman Rho. Ordinal data have at least three categories and the categories have a natural order. Spearmans rho is an excellent choice when you have ordinal data because Pearsons is not appropriate.
Jun 25 2020 Wikipedia Definition. It measures the strength and direction of the association between two ranked variables. It is also known as Spearmans Rank.
Kendalls Tau and Spearmans rank correlation coefficient assess statistical associations based on the ranks of the data.
It is used in studies that are looking for a relationship where the data is at least ordinal. The Spearman correlation coefficient is based on the ranked values for each variable rather than the raw data. That being said it is important to address the value of rho which at 01 would be considered low in most. It assesses how well the relationship between two variables can be described using a monotonic function.
