Dear all,
it is not clear to me how to compute a variance partition coefficient for a
dichotomous dependent variable using GENLINMIXED in SPSS 24.
For example, assume I receive the score 1.13 for the intercept variance of a
null model (1.13 is contained in the table "Random effect", first column
labelled "Random effect covariance", second column labelled "estimate", row
labelled "Var [Intercept]").
Would it be correct to consider this score to (a) indicate the random
variance of the intercepts var(u0j)?
Then I would calculate the VPC as var(u0j) / [var(u0j) + (π2 / 3)] = 1.13 /
(1.13 + 3.29) = 25.5%? (e.g. Snijders & Bosker 1999)?
Best,
Nina
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