SRCC Flashcards
1
Q
Spearmans rank correlation coefficent
A
Measures the strength of correlation between the rankings of two sets of data. SRCC can be used for numerical and non-numerical values. To calculate SRCC, you need to rank (order) the data in each set. Used for non-linear data
2
Q
Pearsons product-moment correlation coefficient
A
Measures the relationship between 2 sets of data values. PMCC can only be calculated for numerical values. Used for linear data.
3
Q
Rating scale
A
Close to 1 is a strong positive correlation. 0 is no correlation. Close to -1 is a strong negative correlation.
4
Q
Which one is more likely to be stronger
A
SRCC is more likely to be stronger than PMCC as it is more likely for ranks to be equal than numerical data values
