Table 4.

D-efficiencies of locally D-optimal designs ( ${\xi }_D^h$) based on the MqLE for h = −2, 0, 2, 5 when there is a mis-specification in ED₅₀ and the true value is ED₅₀ = −4.716 under θ₁ = (1.563, 1.790, 8.442, 0.137)′.

ED50	$e_D({\xi }_D^0)$	$e_D({\xi }_D^{-2})$	$e_D({\xi }_D^2)$	$e_D({\xi }_D^5)$
−5.5	0.732	0.731	0.695	0.600
−5	0.955	0.955	0.949	0.932
−4	0.744	0.743	0.716	0.661
−3	0.221	0.209	0.196	0.085
1	< 0.001	< 0.001	< 0.001	< 0.001