Table A-16. Estimated equations and model statistics for full-time and part-time college enrollment rates of women |
---|

Independent variable |
Coefficient |
Standard error |
t-statistic |
R^{2} |
D.W. statistic |
---|---|---|---|---|---|

Full-time |
|||||

Intercept term for 17-year-olds | -9.30 | 0.163 | -57.05 | 1.00 | 1.31** |

Intercept term for 18-year-olds | -6.56 | 0.143 | -45.81 | ||

Intercept term for 19-year-olds | -6.44 | 0.138 | -46.54 | ||

Intercept term for 20-year-olds | -6.62 | 0.137 | -48.26 | ||

Intercept term for 21-year-olds | -6.84 | 0.137 | -49.82 | ||

Intercept term for 22-year-olds | -7.50 | 0.139 | -54.04 | ||

Intercept term for 23-year-olds | -8.01 | 0.141 | -57.00 | ||

Intercept term for 24-year-olds | -8.39 | 0.142 | -59.16 | ||

Intercept term for 25- to 29-year-olds | -9.07 | 0.141 | -64.39 | ||

Intercept term for 30- to 34-year-olds | -9.77 | 0.139 | -70.34 | ||

Intercept term for 35- to 44-year-olds | -9.99 | 0.139 | -71.78 | ||

Log of three-period weighted average of per capita | |||||

disposable income in 2000 dollars, using the present | |||||

period and the previous two periods | 1.11 | 0.029 | 38.30 | ||

Log of age-specific unemployment rate for women | 0.16 | 0.039 | 4.00 | ||

Part-time |
|||||

Intercept term for 17-year-olds | -11.09 | 0.436 | -25.42 | 0.99 | 1.91* |

Intercept term for 18-year-olds | -8.53 | 0.344 | -24.80 | ||

Intercept term for 19-year-olds | -7.99 | 0.327 | -24.43 | ||

Intercept term for 20-year-olds | -8.13 | 0.324 | -25.09 | ||

Intercept term for 21-year-olds | -8.16 | 0.320 | -25.52 | ||

Intercept term for 22-year-olds | -8.32 | 0.320 | -25.97 | ||

Intercept term for 23-year-olds | -8.39 | 0.322 | -26.07 | ||

Intercept term for 24-year-olds | -8.44 | 0.325 | -25.97 | ||

Intercept term for 25- to 29-year-olds | -8.91 | 0.335 | -26.61 | ||

Intercept term for 30- to 34-year-olds | -9.38 | 0.334 | -28.07 | ||

Intercept term for 35- to 44-year-olds | -9.09 | 0.345 | -26.37 | ||

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 | 0.050 | 20.05 | ||

Log of unemployment rate | 0.14 | 0.026 | 5.59 | ||

Autocorrelation coefficient for 17-year-olds | 0.76 | 0.080 | 9.42 | ||

Autocorrelation coefficient for 18-year-olds | 0.78 | 0.076 | 10.29 | ||

Autocorrelation coefficient for 19-year-olds | 0.76 | 0.073 | 10.30 | ||

Autocorrelation coefficient for 20-year-olds | 0.65 | 0.101 | 6.38 | ||

Autocorrelation coefficient for 21-year-olds | 0.36 | 0.129 | 2.79 | ||

Autocorrelation coefficient for 22-year-olds | 0.47 | 0.098 | 4.80 | ||

Autocorrelation coefficient for 23-year-olds | 0.52 | 0.076 | 6.88 | ||

Autocorrelation coefficient for 24-year-olds | 0.73 | 0.064 | 11.33 | ||

Autocorrelation coefficient for 25- to 29-year-olds | 0.89 | 0.034 | 26.37 | ||

Autocorrelation coefficient for 30- to 34-year-olds | 0.91 | 0.025 | 36.32 | ||

Autocorrelation coefficient for 35- to 44-year-olds | 0.92 | 0.025 | 36.80 |

* p <05. |
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** Inconclusive. | |||||

R = Coefficient of determination.^{2} |
|||||

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. |
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NOTE: 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 both equations is from 1980 to 2008. The number of observations for the full-time equation is 319 and the number of observations for the part-time equation, after the correction for autocorrelation, is 308. 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 January 2010.) |

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