What test to evaluate therapeutic education with my conditions ?


So I passed a questionnaire to a group of patients. Some of these patients have stress at T1 and others not.

Then some of these two groups participated or not in a therapeutic education workshop on stress.

And finally all the patients answered the questionnaire again at T2. My goal is to check if the workshop has a significant impact on their stress score.

So I thought I had to do an ANOVA, is this that ?

Currently in the table excel, I have the scores on the questionnaire and if they participated or not in the workshop in binary response 1/0, I think it would be necessary therefore that I make the groups stress or not stress but I don’t know how to do under SPSS.

Could you help on what i must do and how ?

Many thanks,