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. Author manuscript; available in PMC: 2009 Apr 14.
Published in final edited form as: Stat Med. 2009 Mar 30;28(7):1108–1130. doi: 10.1002/sim.3533

Table 1. Performan ce of simulated models for CBT treatment for Suicide.

Simulated Based on Heterogeneity for Defiers compared to other 3 groups
True Value Coverage Mean Bias Pct Bias MSE
Direct Effect
Heterogeneous by Defiers Model -5.70 96.2%
95.3%
-0.38
-0.06%
-6.6%
-1.1%
8.07
3.91
Homogeneous Model -5.70 97.4%
97.8%
-0.60
-0.30
-10.4%
-5.2%
9.80
5.46
Direct Effect within Always Mediators
Heterogeneous by Defiers Model -10.05 97.6%
97.9%
1.89
0.76
18.7%
7.6%
47.22
24.32
Homogeneous Model -10.05 97.6%
99.8%
5.06
4.38
50.1%
43.3%
31.30
29.90
Direct Effect within Never Mediators
Heterogeneous by Defiers Model -4.96 95.0%
95.3%
-0.79
-0.24
-15.8%
-4.8%
9.65
4.66
Homogeneous Model -4.96 95.0%
95.5%
-1.63
-1.24
-32.5%
-24.9%
11.83
6.56
Mis-specifed Model - Simulation based on Heterogeneity for Always Mediators compared to other 3 groups
True Value Coverage Mean Bias Pct Bias MSE
Direct Effect
Heterogeneous by Defiers Model -5.70 96.4%
92.8%
0.74
0.74
12.9%
12.9%
10.09
5.46
Homogeneous Model -5.70 95.6%
94.4%
0.69
1.24
12.0%
21.6%
13.16
9.50
Direct Effect within Always Mediators
Heterogeneous by Defiers Model -10.05 47.4%
36.7%
15.53
16.50
153.7%
163.3%
39.12
25.36
Homogeneous Model -10.05 80.8%
78.9%
10.78
11.65
106.8%
115.3%
39.38
39.37
Direct Effect within Never Mediators
Heterogeneous by Defiers Model -4.96 92.8%
89.9%
-1.42
-1.57
-28.4%
-31.4%
11.81
5.93
Homogeneous Model -4.96 95.2%
93.2%
-0.67
-0.03
-13.5%
-0.7%
15.13
10.46

Note: Per row top number corresponds to results for N=101 and bottom corresponds to results for N=202.