Table II.
Summary statistics for all 15 COPE models for four outcomes, ordered by Akaike’s Information Criterion (AIC) from best to worst. Model identifies the clustering among outcomes; Outcomes 1–4 represent Social Support= 1, Positive Action= 2, Anxiety= 3 and Somatization= 4. AIC, Bayes Information Criterion (BIC) and −2 log L are in smaller-is-better form. Diff is the −2log likelihood ratio test (LRT) statistic between each model and the saturated model 1, 2, 3, 4; df is the degrees of freedom for the test and the p-value comes from comparing the LRT statistic to the χ2(df) reference distribution. Columns labeled γ1 to γ4 are the estimates of the scale γ1s from the link function; the γ1s correspond to the outcomes in the order shown in the Model column.
| Order | Model | AIC | BIC | −2 log L | Diff | df | p-value | γ1 | γ2 | γ3 | γ4 | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 134, 2 | 12,325.5 | 12,477.3 | 12,245.5 | 23.7 | 18 | .17 | .38 | .88 | 1.00 | 1.00 | 
| 2 | 1, 2, 34 | 12,330.6 | 12,520.4 | 12,230.6 | 8.8 | 9 | .46 | 1.00 | 1.00 | .87 | 1.00 | 
| 3 | 13, 2, 4 | 12,333.7 | 12,523.5 | 12,233.7 | 11.9 | 9 | .22 | .48 | 1.00 | 1.00 | 1.00 | 
| 4 | 14, 2, 3 | 12,337.8 | 12,527.6 | 12,237.8 | 16.0 | 9 | .07 | .37 | 1.00 | 1.00 | 1.00 | 
| 5 | 1, 234 | 12,339.2 | 12,491.0 | 12,259.2 | 37.4 | 18 | .00 | 1.00 | .38 | .90 | 1.00 | 
| 6 | 1234 | 12,339.3 | 12,453.2 | 12,279.3 | 57.5 | 27 | .00 | .39 | .23 | .88 | 1.00 | 
| 7 | 1, 2, 3, 4 | 12,341.8 | 12,569.6 | 12,221.8 | - | - | - | 1.00 | 1.00 | 1.00 | 1.00 | 
| 8 | 13, 24 | 12,344.9 | 12,496.8 | 12,264.9 | 43.1 | 18 | .00 | .53 | 1.00 | .35 | 1.00 | 
| 9 | 12, 34 | 12,345.1 | 12,497.0 | 12,265.1 | 43.3 | 18 | .00 | 1.05 | 1.00 | .88 | 1.00 | 
| 10 | 14, 23 | 12,346.8 | 12,498.6 | 12,266.8 | 45.0 | 18 | .00 | .51 | 1.00 | .59 | 1.00 | 
| 11 | 123, 4 | 12,347.8 | 12,499.7 | 12,267.8 | 46.0 | 18 | .00 | .47 | .28 | 1.00 | 1.00 | 
| 12 | 1, 23, 4 | 12,348.4 | 12,538.2 | 12,248.4 | 26.6 | 9 | .00 | 1.00 | .53 | 1.00 | 1.00 | 
| 13 | 1, 24, 3 | 12,350.8 | 12,540.6 | 12,250.8 | 29.0 | 9 | .00 | 1.00 | .37 | 1.00 | 1.00 | 
| 14 | 124, 3 | 12,351.6 | 12,503.4 | 12,271.6 | 49.8 | 18 | .00 | .38 | .23 | 1.00 | 1.00 | 
| 15 | 12, 3, 4 | 12,356.4 | 12,546.2 | 12,256.4 | 34.6 | 9 | .00 | 1.06 | 1.00 | 1.00 | 1.00 |