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Hello, I have the following setup 30 individuals, comprising * 3 ethnicities * 3 occupations 10 survey questions (answers from 1 to 10) Before an intervention, I took a pre-survey. After the intervention, I took a post-survey. I want to compare the results between the pre and...

Does anyone know a good SSPS tutorial for the project I'm doing? I want to do a retrospective study to see if Drug A reduced postoperative Complication B from a particular surgery. I also want to include BMI, age, race, etc. in the analysis. From what I've read, I need to do the...