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Example 36
Classifying Individual Cases
To obtain probabilities of group membership for each individual case:
E Click the Posterior Predictive button .
or
E From the menus, choose View > Posterior Predictive.
For each case, the Posterior Predictive Distributions window shows the probability that
the group variable takes on the value Cluster1 or Cluster2. Case 1 is estimated to have
a 0.88 probability of being in Group number 1 and a 0.12 probability of being in Group
number 2. Recall that the first group has an intercept of about 5.399 while the second
group has an intercept of about 9.955, so Group number 1 is the low performing group.
Therefore, there is an 88 percent chance that the first person in the sample is in the low
performing group and a 12 percent chance that that person is in the high performing
group.