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Example
11
Felson and Bohrnstedt’s Girls and
Boys
Introduction
This example demonstrates how to fit a simultaneous equations model to two sets of
data at once.
Felson and Bohrnstedt’s Model
Example 7 tested Felson and Bohrnstedt’s (1979) model for perceived attractiveness
and perceived academic ability using a sample of 209 girls. Here, we take the same
model and attempt to apply it simultaneously to the Example 7 data and to data from
another sample of 207 boys. We will examine the question of whether the measured
variables are related to each other in the same way for boys as for girls.
About the Data
The Felson and Bohrnstedt (1979) data for girls were described in Example 7. Here is
a table of the boys’ data from the SPSS Statistics file Fels_mal.sav: