Hello, I'm writing my thesis and I'm clueless about which statistic test I need to apply ( is it T-test, Chi-text, Anova …), I will do my ststistics on SPSS.
In my thesis I have 2 sets (=2 groups) of patients with the same disease, one group gets a specific treatment , while the second group is without that treatment. After a period of time some of the patients have developed a certain complication. Now I need to compare the 2 groups and see if the treatment lowered the risk of that complication appearance -with statistical significance.
Thank you very much!

In my thesis I have 2 sets (=2 groups) of patients with the same disease, one group gets a specific treatment , while the second group is without that treatment. After a period of time some of the patients have developed a certain complication. Now I need to compare the 2 groups and see if the treatment lowered the risk of that complication appearance -with statistical significance.
Thank you very much!