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Modeling interaction effects in LGCA |
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Nina Wu posted on Monday, October 17, 2011 - 2:20 pm
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Hi. I am writing to ask if interactions can be modeled in LGCA. For instance, if I want to interact maternal education and mothers' race/ethnicity to predict high chronic child outcome, would I be able to model that in LCGA? Any help would be appreciated. Thank you in advance. Nina |
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Yes, you can create an interaction term and use it as a predictor of the latent classes. |
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Nina Wu posted on Thursday, October 27, 2011 - 11:15 am
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Thank you for your reply, Dr. Muthen. I would like to ask a follow-up question. Let's say that I have identified 3 different latent classes of a variable: high/low/moderate, can I take a step further and test for differences by race/ethnicity and immigration status? Also, I was told by a colleague that I would be able to model co-occurrence (2 behaviors together) in LGCA. Is that true? |
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Q1. Yes, you include those variables as predictors of the latent class variable. Q2. Yes, that is corect. Your 2 processes can be influenced either by one and the same latent class variable, or have their own latent class variable, letting the 2 latent class variables correlate. |
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