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. 2008 Apr 7;4(1):4. doi: 10.2202/1557-4679.1082

Table 1.

Bias and root mean square error (RMSE) of various estimators of ρA in two different scenarios.

Estimator Bias RMSE
Scenario 1: (βW=(1,0.5)T)
Path Analysis 0.872 0.872
2SLS −0.001 0.122
3SLS 0.002 0.122
Scenario 2: (βW=(1,0)T)
Path Analysis 0.970 0.970
2SLS
0.000 0.051
3SLS 0.001 0.039