Hi, I'm new to SAS and am going through the basic programming modules. I have a data set and want to show a difference in the mean heights of men and women for only a specific age (age=20). I know the concept behind the model I need to use which is logistic. I'm not too familiar with SAS to be able produce what I know I need to do. My dataset contains many, many variables and observations, but I filtered the data to only run analysis for age=20. I am working with GENDER (1=male, 2=female), LENGTH (which is height), and AGE (only needing to look at 20).   The response is LENTH vs the GENDER of the individuals for a specific AGE. Any suggestions for commands that may help here...   I cooked up this on SAS (University Edition):   proc glm data=hw2.z_final; class gender; where age=24; model length=gender/ effectsize alpha=0.05 Solution; run; Thanks in advanced. If I need to clarify, let me know.  ... View more