t test between two variables

lone0708 — Wed, 02 Aug 2023 12:44:02 GMT

Hi all,

i have a dataset with one oberservation for each id. I want to compare values between two variables using paired t-test.

My problem is, that i have a lot of missings in one of the variables and when i do the proc t-test, sas only uses a small number of observations.

Is there a way, where i can compare means calculated using all the observations in each variable?

Re: t test between two variables

PaigeMiller — Wed, 02 Aug 2023 12:55:31 GMT

Lots of discussion on the internet about this issue of missing values in a paired t-test.

For example, here we see

Missing values can severely impact a paired sample t-test because the entire row of data will generally be excluded. If you have a lot of missing data, one alternative would be to perform a single factor repeated measures mixed model ANOVA. This would allow for the computation of estimated marginal means to compensate for the uneven replication between groups.

topic Re: t test between two variables in Statistical Procedures

t test between two variables

Re: t test between two variables