Table 3.
Effect Size | Missing Ratesb | Standard MKW Test (Deleting all missing data) | Extended MKW Test (Partially observed data) | Standard MKW Test in original data (assuming no missingness) | |
---|---|---|---|---|---|
Unweighted c | Weighted d | ||||
0.08 | medium | 0.26 | 0.28 | 0.28 | 0.57 |
high | 0.15 | 0.23 | 0.23 | 0.55 | |
0.10 | medium | 0.32 | 0.41 | 0.40 | 0.67 |
high | 0.16 | 0.33 | 0.34 | 0.72 | |
0.12 | medium | 0.38 | 0.45 | 0.47 | 0.78 |
high | 0.19 | 0.40 | 0.41 | 0.76 | |
0.16 | medium | 0.43 | 0.58 | 0.58 | 0.89 |
high | 0.24 | 0.52 | 0.54 | 0.89 | |
0.19 | medium | 0.55 | 0.73 | 0.71 | 0.96 |
high | 0.26 | 0.60 | 0.61 | 0.95 | |
0.26 | medium | 0.73 | 0.87 | 0.89 | 0.99 |
high | 0.38 | 0.81 | 0.79 | 0.99 | |
0.36 | medium | 0.85 | 0.96 | 0.97 | 0.998 |
high | 0.52 | 0.93 | 0.93 | 1 |
Simulations based on 1000 replications
Medium: M1=40%, M2=M3=30%. High: M1=20%, M2=M3=40%. n1 = n2 = 50.
t1 = 1/3, l = 1,2,3
t1 = 0.4, t2 = t3 = 0.3
X ~ BIN(5,0.5).
Group 1: Y11|X ~ POI(1 + X), Y12|X ~ POI(2 + X)
Group 2: Y22|X ~ POI(1 + X), Y22|X ~ POI(2 + Δ + X)