2. Compute a squared term for the age variable as described above. Estimate a multiple regression model using one of the measures of delinquency as the dependent variable. Use age and age squared as the independent variables. As noted earlier in the chapter, this will provide a quadratic equation that will test for a nonlinear relationship between age and the measure of delinquency that you have selected. Report the values of the regression coefficients for age and age squared and whether or not the coefficients are statistically significant (with α ¼ 0.05). Interpret the effect of age on this measure of delinquency.