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. Author manuscript; available in PMC: 2013 Sep 13.
Published in final edited form as: J Biom Biostat. 2012 Dec;3(8):155. doi: 10.4172/2155-6180.1000155

Table 5.

Summary statistics for coefficients from simulation study with partial correlation of .8 and sample size of 500.

(ρxy, ρxz, ρyz) = (.9,.83,.7), ρxy.z = .8, τxy.z = 1.1,n = 500
Pearson correlation Fisher-z
Full CC EM MI Full CC EM MI
20% missing
E(Bias) 0 −0.013 −0.002 −0.002 0.002 −0.032 −0.004 −0.004
E(SE) 0.027 0.031 0.032 0.029 0.045 0.050 0.089 0.046
MSE
0.017 0.023 0.019 0.019 0.047 0.061 0.052 0.052
RE 1 1.94 1.27 1.28 1 1.70 1.23 1.25
95% Cov 0.997 0.991 0.998 0.998 0.941 0.89 0.999 0.915
35% missing
E(Bias) 0 −0.019 −0.004 −0.004 0.002 −0.048 −0.01 −0.008
E(SE) 0.027 0.035 0.034 0.030 0.045 0.056 0.092 0.048
MSE
0.016 0.028 0.02 0.02 0.045 0.072 0.055 0.055
RE 1 3.0 1.54 1.57 1 2.55 1.46 1.50
95% Cov 0.999 0.995 0.999 0.998 0.948 0.858 1 0.911
50% missing
E(Bias) 0 −0.026 −0.01 −0.009 0.002 −0.065 −0.024 −0.021
E(SE) 0.027 0.040 0.036 0.033 0.045 0.064 0.097 0.051
MSE
0.016 0.037 0.025 0.025 0.046 0.092 0.067 0.067
RE 1 4.932 2.36 2.34 1 3.97 2.09 2.09
95% Cov 0.999 0.984 0.997 0.995 0.955 0.821 0.997 0.886

Note: full data (Full), complete case analysis (CC), the expectation-maximization algorithm (EM), multiple imputation (MI), standard error (SE), mean squared error (MSE), relative efficiency (RE), and 95% coverage probabilities (95% Cov)