| Table A-18. Estimated equations and model statistics for full-time and part-time college enrollment rates of women |
|---|
| Independent variable | Coefficient | Standard error | t-statistic | R2 | D.W. statistic |
|---|---|---|---|---|---|
| Full-time | |||||
| Intercept term for 17-year-olds | -9.48 | 0.181 | -52.48 | 1.00 | 1.29** |
| Intercept term for 18-year-olds | -6.70 | 0.163 | -41.05 | ||
| Intercept term for 19-year-olds | -6.58 | 0.159 | -41.37 | ||
| Intercept term for 20-year-olds | -6.70 | 0.159 | -42.22 | ||
| Intercept term for 21-year-olds | -6.92 | 0.159 | -43.57 | ||
| Intercept term for 22-year-olds | -7.58 | 0.160 | -47.26 | ||
| Intercept term for 23-year-olds | -8.08 | 0.162 | -49.98 | ||
| Intercept term for 24-year-olds | -8.46 | 0.163 | -51.90 | ||
| Intercept term for 25- to 29-year-olds | -9.05 | 0.164 | -55.20 | ||
| Intercept term for 30- to 34-year-olds | -9.76 | 0.162 | -60.11 | ||
| Intercept term for 35- to 44-year-olds | -9.98 | 0.163 | -61.28 | ||
| Log of three-period weighted average of per capita | |||||
| disposable income in 2000 dollars, using the present | |||||
| period and the previous two periods | 1.17 | 0.031 | 37.27 | ||
| Log age-specific unemployment rate for women | 0.28 | 0.041 | 6.79 | ||
| Part-time | |||||
| Intercept term for 17-year-olds | -11.18 | 0.500 | -22.38 | 0.99 | 1.88* |
| Intercept term for 18-year-olds | -8.46 | 0.297 | -28.54 | ||
| Intercept term for 19-year-olds | -7.95 | 0.287 | -27.73 | ||
| Intercept term for 20-year-olds | -8.12 | 0.284 | -28.56 | ||
| Intercept term for 21-year-olds | -8.12 | 0.280 | -29.06 | ||
| Intercept term for 22-year-olds | -8.29 | 0.280 | -29.58 | ||
| Intercept term for 23-year-olds | -8.36 | 0.282 | -29.63 | ||
| Intercept term for 24-year-olds | -8.42 | 0.286 | -29.46 | ||
| Intercept term for 25- to 29-year-olds | -8.88 | 0.295 | -30.08 | ||
| Intercept term for 30- to 34-year-olds | -9.25 | 0.292 | -31.70 | ||
| Intercept term for 35- to 44-year-olds | -8.95 | 0.296 | -30.23 | ||
| Log of three-period weighted average of per capita | |||||
| disposable income in 2000 dollars, using the present | |||||
| period and the previous two periods | 1.01 | 0.044 | 22.70 | ||
| Log unemployment rate | 0.14 | 0.024 | 5.85 | ||
| Autocorrelation coefficient for 17-year-olds | 0.82 | 0.074 | 11.11 | ||
| Autocorrelation coefficient for 18-year-olds | 0.75 | 0.082 | 9.11 | ||
| Autocorrelation coefficient for 19-year-olds | 0.77 | 0.071 | 10.71 | ||
| Autocorrelation coefficient for 20-year-olds | 0.60 | 0.105 | 5.74 | ||
| Autocorrelation coefficient for 21-year-olds | 0.30 | 0.123 | 2.39 | ||
| Autocorrelation coefficient for 22-year-olds | 0.44 | 0.097 | 4.57 | ||
| Autocorrelation coefficient for 23-year-olds | 0.52 | 0.077 | 6.82 | ||
| Autocorrelation coefficient for 24-year-olds | 0.74 | 0.063 | 11.74 | ||
| Autocorrelation coefficient for 25- to 29-year-olds | 0.89 | 0.034 | 25.99 | ||
| Autocorrelation coefficient for 30- to 34-year-olds | 0.89 | 0.026 | 33.81 | ||
| Autocorrelation coefficient for 35- to 44-year-olds | 0.89 | 0.026 | 34.19 |
| * p<.05. | |||||
| ** inconclusive | |||||
| NOTE: R2 = Coefficient of determination. D.W. statistic = Durbin-Watson statistic, a test for autocorrelation among regression residuals. For more details see Johnston, J., and Dinardo, J. (1996). Econometric Methods. New York: McGraw-Hill.The regression method used to estimate the full-time equation was the pooled seemingly unrelated regression method. The regression method used to estimate the part-time equation was the pooled seemingly unrelated regression method with a first-order autocorrelation correction. The time period used to estimate the full-time equation was from 1980 to 2009 and that for the part-time equation was from 1981 to 2009. The number of observations for the full-time equation is 330 and the number of observations for the part-time equation, after the correction for autocorrelation, is 319. For additional information, see Intriligator, M.D. (1978). Econometric Models, Techniques, & Applications. New Jersey: Prentice-Hall, Inc., pp. 165–173. | |||||
| SOURCE: U.S. Department of Education, National Center for Education Statistics, Enrollment in Degree-Granting Institutions Model, 1980–2008. (This table was prepared March 2011.) |
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