T-test or correlation coefficient
Posted 22 May 2011 - 02:39 PM
I am analysing the viral load in some samples from patients and I think that the viral load decreases when the age increases. How I can prove the significance of the relation between viral load and age. Shall I use T-test or correlation coefficient and if t- test which numbers I should use for (tail) and (type) in the test.
I am totally new to statistics so please help me.
Posted 22 May 2011 - 06:06 PM
A t-test (or chi squared test) can be used to compare two groups of samples. ANOVA can be used to compare multiple samples. However, there are specific conditions that make each analysis the correct one to use.
I suggest going to your supervisor and asking what would be appropriate, and if all else fails, try asking a statistician.
Posted 23 May 2011 - 01:22 AM