Refer to the previous exercise and the Mental data file. a. For the main effects fit, summarize the life events effect with probability interpretations for P(Y = 1) analogous to those given in the...


Refer to the previous exercise and the Mental data file.


a. For the main effects fit, summarize the life events effect with probability interpretations for P(Y = 1) analogous to those given in the text for P(Y = 4).


b. Find and interpret the estimate of R2 and the multiple correlation for the corresponding latent variable model.


c. Compare the estimated effects to those obtained after combining response categories 3 and 4. What property of the model does this reflect?


d. Since n = 40 is not large, the choice of prior distribution in a Bayesian analysis can be influential. Illustrate this by repeating the analysis using σ = 1 in the normal priors. Compare to the results with σ = 10.



Nov 27, 2021
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