the value an individual exhibits o one variable is related to the value he or she exhibits on another variable; CORRELATION IS NOT CAUSATION
What are the other correlation coefficients?
Spearman's rho and Kendall's tau used with ranked or ordinal #s; phi, Cramer's V, and kappa used for nominal data
What are the major assumptions of correlation coefficients?
1 relationships between variables are assumed to be linear, 2 homoscedasticity, 3 both variables have enough variability to demonstrate a relationship
What is the most frequently used correlation coefficient?
the Pearson product moment correlation
How are correlation coefficients interpreted?
1 the strength of the coefficient itself, 2 the variance shared by the two variables, 3 the statistical significance of the correlation coefficient, 4 the confidence intervals about the correlation coefficient
What is correlation?
the value an individual exhibits o one variable is related to the value he or she exhibits on another variable; CORRELATION IS NOT CAUSATION
What are the other correlation coefficients?
Spearman's rho and Kendall's tau used with ranked or ordinal #s; phi, Cramer's V, and kappa used for nominal data
What are the major assumptions of correlation coefficients?
1 relationships between variables are assumed to be linear, 2 homoscedasticity, 3 both variables have enough variability to demonstrate a relationship
What is the most frequently used correlation coefficient?
the Pearson product moment correlation
How are correlation coefficients interpreted?
1 the strength of the coefficient itself, 2 the variance shared by the two variables, 3 the statistical significance of the correlation coefficient, 4 the confidence intervals about the correlation coefficient
