SPSS / logistic regression

I have performed a logistic regression using 5 different variables in a nested approach.

Does this mean I have also performed mediation or do I need to that separately?

I am very new to logistic regression ... and within a learning process.
Mediation analysis is a completely different thing, which by itself is irrelevant to your estimator. You can look here to get a sense of it.


Not a robit
You should have context knowledge of why or why not mediation may be present. An analyst should not just go looking for it without reason. :)