Simple associationsBMJ 2008; 337 doi: https://doi.org/10.1136/bmj.a197 (Published 10 September 2008) Cite this as: BMJ 2008;337:a197
- John Fletcher, clinical epidemiologist
- 1BMJ, London WC1H 9JR
How would you best assess the degree of linear association between two continuous variables?
a) Scatter plot
b) Odds ratio
c) Bar chart
d—Correlation measures the degree to which two variables are linearly related.
A scatter plot would display graphically the association between two continuous variables. The x axis displays values for one …