Categorical moderator variable

Frequently asked questions about PLS path modeling.
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onurozturk13
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Categorical moderator variable

Post by onurozturk13 » Sat Aug 24, 2019 3:28 pm

I would like to ask a question which is very important for my phd thesis. I have a moderator variable which has 3 categories and I would like to see if these categorical groups differ from each other. I searched a lot but couldnt find a proper answer. People generally show how to do it only with 2 categories, for example: gender. I draw a simple model and attached it here. I would appreciate a lot if you could help me.
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cringle
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Re: Categorical moderator variable

Post by cringle » Sun Aug 25, 2019 9:23 am

I would use the actual age as a single continuous moderator. Thereby, you do not lose any information. Alternatively, compare the third of the youngest against the third of the oldest (leave the middle third out) in a multigroup analysis.

onurozturk13
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Joined: Fri Aug 23, 2019 8:10 pm
Real name and title: Res. Assist. Onur Ozturk

Re: Categorical moderator variable

Post by onurozturk13 » Tue Sep 10, 2019 5:11 am

Sir, thank you very much. The model I drew here was just an example actually. My moderator variable is the degree of anxiety (low, medium and high) but as I understand, it is also valid for my moderator variable too.

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