Table 7.
Reenlistment logistic regression results.
| Model Fit |
Predictor Statistics |
|||||||
|---|---|---|---|---|---|---|---|---|
| MOS (n) | Model | df | −2LL | Δ-2LL | Predictor | OR |
OR 95% LL |
OR 95% UL |
| All | Step 1 | 1 | 45,324.45 | AFQT | 0.843 | 0.825 | 0.861 | |
| (34,884) | Step 2 | 10 | 45,088.33 | 236.12 | AFQT | 0.835 | 0.815 | 0.855 |
| Achievement | 1.068 | 1.041 | 1.094 | |||||
| Adjustment | 0.961 | 0.939 | 0.984 | |||||
| Attention Seeking | 0.959 | 0.937 | 0.982 | |||||
| Cooperation | 0.966 | 0.944 | 0.989 | |||||
| Dominance | 1.070 | 1.044 | 1.097 | |||||
| Intellectual Efficiency | 1.041 | 1.014 | 1.069 | |||||
| Order | 1.037 | 1.013 | 1.061 | |||||
| Physical Conditioning | 0.942 | 0.920 | 0.964 | |||||
| Tolerance | 1.090 | 1.065 | 1.115 | |||||
| 11B/C/X/18X | Step 1 | 1 | 10,982.47 | AFQT | 0.856 | 0.819 | 0.895 | |
| (7,971) | Step 2 | 5 | 10,932.47 | 50.00 | AFQT | 0.844 | 0.808 | 0.882 |
| Achievement | 1.085 | 1.034 | 1.140 | |||||
| Cooperation | 0.949 | 0.906 | 0.993 | |||||
| Dominance | 1.111 | 1.060 | 1.165 | |||||
| Self-Control | 0.952 | 0.909 | 0.998 | |||||
| 12B | Step 1 | 1 | 1285.05 | AFQT | 0.762 | 0.664 | 0.874 | |
| (979) | Step 2 | 1 | 1285.05 | —a | AFQT | 0.762 | 0.664 | 0.874 |
| 13B | Step 1 | 1 | 1557.32 | AFQTc | 0.876 | 0.768 | 1.000 | |
| (1,144) | Step 2 | 2 | 1549.67 | —a | Achievement | 1.137 | 1.007 | 1.284 |
| Cooperation | 0.840 | 0.742 | 0.950 | |||||
| 19D | Step 1 | 1 | 2413.07 | AFQT | 0.790 | 0.725 | 0.881 | |
| (1,760) | Step 2 | 2 | 2401.40 | 11.67 | AFQT | 0.793 | 0.719 | 0.875 |
| Achievement | 1.181 | 1.073 | 1.300 | |||||
| 25U | Step 1 | 1 | 614.87 | AFQTc | 0.952 | 0.766 | 1.185 | |
| (511) | Step 2 | 2 | 604.61 | —a | Adjustment | 0.763 | 0.624 | 0.934 |
| Dominance | 1.247 | 1.026 | 1.516 | |||||
| 31B | Step 1 | 1 | 516.87 | AFQT | 0.713 | 0.561 | 0.906 | |
| (442) | Step 2 | 1 | 516.87 | —a | AFQT | 0.713 | 0.561 | 0.906 |
| 42A | Step 1 | 1 | 299.15 | AFQT | 0.557 | 0.404 | 0.769 | |
| (438) | Step 2 | 3 | 289.71 | 9.43 | AFQT | 0.602 | 0.432 | 0.840 |
| Even-Tempered | 0.721 | 0.525 | 0.990 | |||||
| |
|
|
|
|
Self-Control |
1.533 |
1.112 |
2.114 |
| Model Fit |
Step 2 Predictor Statistics |
|||||||
| MOS (n) |
Model |
df |
−2LL |
Δ-2LL |
Predictor |
OR |
OR 95% LL |
OR 95% UL |
| 68W | Step 1 | 1 | 2764.43 | AFQTc | 0.956 | 0.825 | 1.107 | |
| (2,062) | Step 2 | 2 | 2750.35 | —a | Achievement | 1.135 | 1.037 | 1.241 |
| Tolerance | 1.108 | 1.013 | 1.212 | |||||
| 88M | Step 1 | 1 | 1224.73 | AFQT | 0.834 | 0.711 | 0.979 | |
| (1,056) | Step 2 | 2 | 1224.73 | —a | AFQT | 0.834 | 0.711 | 0.979 |
| 91B | Step 1 | 1 | 2146.87 | AFQT | 0.767 | 0.682 | 0.863 | |
| (1,773) | Step 2 | 3 | 2130.65 | 16.22 | AFQT | 0.770 | 0.684 | 0.867 |
| Dominance | 1.175 | 1.055 | 1.308 | |||||
| Self-Control | 1.149 | 1.034 | 1.275 | |||||
| 92G | Step 1b | 1 | 937.30 | AFQTc | 0.865 | 0.729 | 1.027 | |
| (769) | ||||||||
-2LL = − 2 log likelihood (deviance). OR = odds ratio. 95% LL = 95% confidence interval lower limit of the odds ratio. 95% UL = 95% confidence interval upper limit of the odds ratio. The Step 1 model includes the AFQT only. The Step 2 model adds the TAPAS scales to the AFQT-only model. All predictors are significant (p < .05) unless otherwise noted. For MOS-specific results, Soldiers were only included if they stayed in the same MOS when they reenlisted. Bolded values indicate either significant model fit (−2LL) or significant change in model fit (Δ-2LL) based on a Likelihood Ratio χ2 test, p < .05.
a The change in model fit was not computed because the Step 1 and Step 2 models are either (a) identical or (b) not nested. Models were not nested when the effect of AFQT was not significant in Step 1 and was therefore removed from the final model.
b The Step 2 (i.e., combined AFQT and TAPAS) model contained no significant predictors. Therefore, only the Step 1 (i.e., AFQT-only) model results are presented.
c The effect of the predictor was not significant.