Table 4:

Time Series Model with Covariates

	Estimate	Std. Error	t statistics	sig.level
(Intercept)	0.005	0.645	0.008
scholar	0.443	0.143	3.095	**
time	−0.416	0.081	−5.169	***
Major1	0.396	0.230	1.726	*
Major2	0.587	0.195	3.014	**
HSGPA	0.115	0.041	2.802	**
SEX	−0.220	0.097	−2.256	*
RACEGROUP2	−0.032	0.149	−0.215
RACEGROUP3	0.010	0.138	0.072	**
RACEGROUP4	−0.422	0.159	−2.658	*
RACEGROUP6	−0.056	0.268	−0.210
RACEGROUP7	−0.144	0.142	−1.008
Pell	0.108	0.097	1.106
firstg	−0.183	0.106	−1.736	.
YRSTUDY2	−0.084	0.091	−0.928
Random Effects	Variance	Std.
case	0.299	0.547
Residual	0.458	0.677
ICC	0.395
AIC	1245.425
BIC	1316.521