Question: 3. Figure 19.26 shows a dummy variable model designed to test the effect of Sex on the change in Locus of Control from 8th to
3. Figure 19.26 shows a dummy variable model designed to test the effect of Sex on the change in Locus of Control from 8th to 10th grade (or 10th-grade Locus controlling for 
8th-grade Locus). Analyze the model using the NELS data. You should recode the Sex variable or create a new Female dummy variable so that boys are coded 0 and girls 1. Analyze the model. Do boys or girls have higher (more internal) locus of control in 10th grade?
Analyze a MG-MACS version of this model. Test both for intercept differences and for differences in the effect of Achievement on Locus of Control in 10th grade

r4 Homework mgmacs 1 Model Specification boys Parent Education Family Income 12 0, 13 f13 Parent Occupation Reading Math Science Social Studies Family Background Previous Achievement 0, r11) English 112 0, 0 112, r12 Math 0. Grades fl13 113 13 f14 Science 114 70, d3 Social r14 Studies 0. Homework d2 19 110 Homework Homework 10 12 (r10)
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