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Projections of Education Statistics to 2016
NCES 2008-060
December 2007


Table A-5.  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
Age17 -10.18 1.916 -5.31 0.99 2.39*
Age18 -6.65 0.262 -25.38
Age19 -6.46 0.200 -32.39
Age 20 -6.64 0.194 -34.23
Age 21 -6.86 0.194 -35.34
Age 22 -7.57 0.221 -34.21
Age 23 -8.00 0.210 -38.08
Age 24 -8.30 0.197 -42.11
Age 25 -8.99 0.202 -44.42
Age25-29 -9.73 0.196 -49.55
Age35-44 -9.96 0.194 -51.28
LNRYPDRNMA 1.16 0.045 25.91
LNRUM 0.24 0.060 3.97
Rho17 0.96 0.055 17.59
Rho18 0.86 0.071 12.02
Rho19 0.33 0.139 2.35
Rho20 0.24 0.147 1.63
Rho21 0.28 0.135 2.10
Rho22 0.76 0.074 10.31
Rho23 0.71 0.088 8.11
Rho24 0.44 0.104 4.21
Rho25-29 0.69 0.091 7.56
Rho30-34 0.40 0.136 2.98
Rho35-44 0.06 0.118 0.47
 
Part-time
Age17 -6.79 0.566 -12.00 0.79 2.32*
Age18 -4.02 0.345 -11.66
Age19 -3.61 0.492 -7.34
Age 20 -3.72 0.403 -9.25
Age 21 -3.77 0.459 -8.20
Age 22 -3.84 0.343 -11.19
Age 23 -4.08 0.358 -11.39
Age 24 -4.19 0.400 -10.48
Age 25 -4.40 0.344 -12.78
Age25-29 -4.63 0.346 -13.39
Age35-44 -4.41 0.344 -12.82
LNRYPDRNMA 0.31 0.061 5.07
Rho17 0.48 0.124 3.91
Rho18 0.44 0.169 2.60
Rho19 0.87 0.074 11.65
Rho20 0.77 0.118 6.51
Rho21 0.87 0.072 12.09
Rho22 0.41 0.125 3.28
Rho23 0.63 0.124 5.11
Rho24 0.84 0.089 9.43
Rho25-29 0.62 0.110 5.62
Rho30-34 0.74 0.077 9.66
Rho35-44 0.62 0.087 7.14    
* p<.05.
R2 = Coefficient of determination.
D.W. statistic = Durbin-Watson statistic. For an explanation of the Durbin-Watson statistic, see J. Johnston and J. Dinardo, Econometric Methods, New York: McGraw-Hill, 1996.
Where:
AGE(age) = Age-specific intercept term.
Rho(age) = Autocorrelation coefficient for each age.
LNRUF = Log unemployment rate for women.
LNRYPDRNMA = Log of three-period weighted average of per capita disposable in 2000 dollars, using the present period and the previous two periods.
NOTE: The regression method used to estimate the full-time and part-time equations was the pooled seemingly unrelated regression method with a first-order autocorrelation correction. The time period used to estimate the equations is from 1975 to 2005. The number of observations is 363. For additional information, see M. D. Intriligator, Econometric Models, Techniques, & Applications, New Jersey: Prentice-Hall, Inc., 1978, pp. 165–173.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Enrollment in Degree-Granting Institutions Model, 1980–2005. (This table was prepared November 2006.)
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