Autoregressive model vs autocorrelate... PreviousNext
Mplus Discussion > Growth Modeling of Longitudinal Data >
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 Johnny Wu posted on Tuesday, January 30, 2007 - 5:41 pm
Hello Dr. Muthen,

Say we had y1-y4:

Autoregressive models would regress y2 on y1, y3 on y2, and y4 on y3.

Autocorrelated disturbances would have the residual variances of y1-y4 be related to each other (given a latent growth model framework, where an intercept and slope is estimated from y1-y4 scores).

Substantively, how are they different?

thanks
 Bengt O. Muthen posted on Tuesday, January 30, 2007 - 6:01 pm
The former model regresses all of y on earlier y's, the latter model regresses only the residual part of y on earlier residual parts.
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