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Do we need to avoid a saturated model?

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Sat, 04/04/2020 - 00:13

#1

Xin Lin's picture

Xin Lin

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Joined: 06/10/2019 - 15:24

Do we need to avoid a saturated model?

Dear Dr. Cheung,

I used Lavaan to specify my model. Do I need to declare the correlations among the mediator variables besides the correlations among the independent variables?
After adding all paths to the model, I got a perfect fit model, which will be of little use statistically.

Thanks,
Xin

Sun, 04/05/2020 - 20:50

#2

Mike Cheung's picture

Mike Cheung

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Joined: 10/08/2009 - 22:37

Dear Xin,

Dear Xin,

Many researchers prefer to correlate the mediators. If it is a saturated model, the focus is on the parameter estimates and their standard errors (or confidence intervals).

Best,
Mike

Sun, 04/05/2020 - 21:18

(Reply to #2) #3

Xin Lin's picture

Xin Lin

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Joined: 06/10/2019 - 15:24

Dear Dr. Cheung,

Dear Dr. Cheung,

Thanks for your answer in detail. I appreciate it!

Best,
Xin