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Example 11
Obtaining Critical Ratios for Parameter Differences
E From the menus, choose View > Analysis Properties.
E In the Analysis Properties dialog box, click the Output tab.
E Select Critical ratios for differences.
In this example, however, we will not use critical ratios for differences; instead, we
will take an alternative approach to looking for group differences.
Model B for Girls and Boys
Suppose we are mainly interested in the regression weights, and we hypothesize
(Model B) that girls and boys have the same regression weights. In this model, the
variances and covariances of the exogenous variables are still allowed to differ from
one group to another.
This model allows the distribution of variables such as height and weight to be
different for boys than for girls while requiring the linear dependencies among