Table 3 |
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|
Power of Methods for Missing Data Percentages (10% and 40%) and Mechanisms |
|||||
| Method |
Missing Rate |
MCAR |
MAR |
MAR/MNAR |
MNAR |
|
|
|||||
| SSSa |
10% |
0.8370 |
0.9355 |
0.9225 |
0.9355 |
| 40% |
0.5705 |
0.6125 |
0.5750 |
0.5600 |
|
| Modified SSSb (Dawson Weight) |
10% |
0.8165 |
0.9000 |
0.8810 |
0.8970 |
| 40% |
0.4445 |
0.3755 |
0.3660 |
0.3000 |
|
| Modified SSSb (Population Weight) |
10% |
0.8240 |
0.9075 |
0.8910 |
0.9075 |
| 40% |
0.4990 |
0.4150 |
0.4105 |
0.3850 |
|
| Modified SSSb (SSTime Weight) |
10% |
0.8220 |
0.8675 |
0.8820 |
0.8990 |
| 40% |
0.4770 |
0.3075 |
0.3795 |
0.3780 |
|
| Fisherc |
10% |
0.7655 |
0.6940 |
0.6710 |
0.6855 |
| 40% |
0.3240 |
0.1505 |
0.1460 |
0.1195 |
|
| Weighted Z-Transformd |
10% |
0.8265 |
0.9080 |
0.8965 |
0.9085 |
| 40% |
0.4990 |
0.4440 |
0.4355 |
0.4130 |
|
|
*Power, r = .6, n = 100, simulations = 2000 *a, b, c, d indicate the methods of analysis in the text | |||||
Hedden et al. Substance Abuse Treatment, Prevention, and Policy 2008 3:13 doi:10.1186/1747-597X-3-13 |
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