IV: categorical - (5 categories with 1 and 5 being the extreme indicators)
DV: binary - (dummy coding has been done.)
Mo: continuous
1) Is it possible to use SPSS PROCESS MACRO for moderation analysis?
2) If so, would using the Johnson-Neyman technique be the right approach?
3) If using PROCESS MACRO is not appropriate, what method can I use to test moderation?
It is possible to use binary DVs in PROCESS, it will automatically us a logistic regression model. And this also answers your third question. There is in principal no need to use the PROCESS macro at all, you can do it manually or with any other statistics program, but PROCESS is quite handy if you know what you are doing.
I cant say if the Johnson-Neyman approach is suitable for you, this depends on your research question, but it is available in PROCESS for logistic models and a metric moderator.
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