Rehab Research Word Scramble
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Question | Answer |
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 is the most frequently used correlation coefficient? | the Pearson product moment correlation |
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 |
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 |
Created by:
amwilliamson
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