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. 2011 Nov 16;6(11):e27826. doi: 10.1371/journal.pone.0027826

Table 2. Results of Using Demographic Variables, School, and Attendance to Predict Final Averages of 2010-2011 School year.

Model Predictor B (S.E.) β (partial r) p
1 Sophomore a −.719 (4.031) −.020 (−.020) .859
Female a −3.232 (4.11) −.090 (−.088) .434
Black a −2.852 (4.09) −.080 (−.078) .488
R 2 = .019
2 Sophomore a .510 (2.50) .014 (.023) .839
Female a −1.504 (2.56) −.042 (−.067) .557
Black a −1.702 (2.54) −.048 (−.076) .504
RA a 28.086 (2.48) .784 (.788) < .001
R 2 = .628*
3 Sophomore a 2.752 (1.96) .077 (.158) .164
Female a 3.057 (2.07) .085 (.166) .144
Black a −3.403 (1.98) −.095 (−.193) .089
RA a 30.220 (1.95) .844 (.871) < .001
Attendance b −.125 (.02) −.418 (−.639) < .001
R 2 = .883*

Note: All missing cases excluded listwise; N = 83. Tolerance values for all variables in all models were >.86.

a

-Dichotomous variable with ‘1’ equal to the variable's name.

b

-Number of core classes missed in quarters 3 and 4.

*p<.001.