1. 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)....

1. 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.

Figure 19.26
Initial dummy variable model to study differences in locus of control for boys versus

girls in grades 8 and 10.