Table 7.25 is from a General Social Survey. Subjects were asked about government spending on the environment (E), health (H), assistance to big cities (C), and law enforcement (L). The common response...

Table 7.25 is from a General Social Survey. Subjects were asked about government spending on the environment (E), health (H), assistance to big cities (C), and law enforcement (L). The common response scale was (1 = too little, 2 = about right, 3 = too much).

a. Table 7.26 shows some results, including the two-factor estimates, for the homogeneous association model. All estimates at category 3 of each variable equal 0. Test the model goodness of fit, and interpret.

b. Explain why the estimated conditional log odds ratio for the “too much” and “too little” categories of E and H equals which has estimated SE = 0.523. Show that a 95% confidence interval for the true odds ratio equals (3.1, 24.4). Interpret.

c. Estimate the conditional odds ratios using the “too much” and “too little” categories for each of the other pairs of variables. Summarize the associations. Based on these results, which term(s) might you consider dropping from the model? Why?