TABLE II.
Means and standard deviations of parameter estimates: with number of cases = 200, 500 and, 800, 1,000
| # Cases | ea | ec | eâ | eĉ | |||
|---|---|---|---|---|---|---|---|
| (a) 200 (Method L1) | 1 | 1 | 1.29 (0.23) | 1.02 (0.55) | 0.44 (0.04) | 0.94 (0.23) | 0.66 (0.06) |
| 1.2 | 1 | 1.39 (0.31) | 0.91 (0.52) | 0.45 (0.04) | 0.90 (0.31) | 0.67 (0.06) | |
| 1.5 | 1 | 1.62 (0.42) | 1.05 (0.52) | 0.44 (0.04) | 0.94 (0.25) | 0.72 (0.07) | |
| 2 | 1 | 2.22 (0.49) | 1.22 (0.73) | 0.42 (0.04) | 0.95 (0.22) | 0.80 (0.07) | |
| 1.5 | 1.5 | 1.90 (0.68) | 1.72 (0.92) | 0.44 (0.04) | 0.75 (0.42) | 0.71 (0.12) | |
| 2 | 1.5 | 2.57 (0.76) | 1.83 (0.88) | 0.44 (0.04) | 0.84 (0.36) | 0.77 (0.09) | |
| 200 (Method L2) | 1 | 1 | 1.27 (0.21) | 1.00 (0.43) | 0.45 (0.04) | 0.87 (0.34) | 0.64 (0.05) |
| 1.2 | 1 | 1.34 (0.27) | 0.93 (0.32) | 0.44 (0.05) | 0.91 (0.29) | 0.66 (0.06) | |
| 1.5 | 1 | 1.58 (0.36) | 1.01 (0.35) | 0.39 (0.06) | 0.94 (0.23) | 0.72 (0.09) | |
| 2 | 1 | 2.07 (0.36) | 0.92 (0.25) | 0.35 (0.07) | 0.96 (0.20) | 0.78 (0.12) | |
| 1.5 | 1.5 | 1.76 (0.60) | 1.57 (0.78) | 0.40 (0.08) | 0.82 (0.37) | 0.67 (0.14) | |
| 2 | 1.5 | 2.46 (1.04) | 1.69 (0.96) | 0.32 (0.16) | 0.75 (0.42) | 0.57 (0.28) | |
| 200 (Method L3) | 1 | 1 | 1.28 (0.21) | 0.98 (0.42) | 0.45 (0.04) | 0.87 (0.34) | 0.64 (0.05) |
| 1.2 | 1 | 1.35 (0.27) | 0.91 (0.34) | 0.44 (0.05) | 0.90 (0.30) | 0.66 (0.06) | |
| 1.5 | 1 | 1.59 (0.36) | 1.06 (0.41) | 0.39 (0.06) | 0.95 (0.21) | 0.73 (0.07) | |
| 2 | 1 | 2.18 (0.40) | 0.99 (0.33) | 0.35 (0.05) | 0.98 (0.13) | 0.81 (0.07) | |
| 1.5 | 1.5 | 1.85 (0.63) | 1.78 (0.88) | 0.39 (0.06) | 0.89 (0.29) | 0.71 (0.11) | |
| 2 | 1.5 | 2.52 (0.72) | 1.95 (0.94) | 0.35 (0.06) | 0.98 (0.14) | 0.79 (0.10) | |
| 500 (Method L1) | 1 | 1 | 1.12 (0.11) | 0.95 (0.29) | 0.45 (0.02) | 0.98 (0.13) | 0.64 (0.03) |
| 1.2 | 1 | 1.26 (0.17) | 1.02 (0.34) | 0.44 (0.03) | 0.99 (0.08) | 0.68 (0.04) | |
| 1.5 | 1 | 1.60 (0.23) | 1.04 (0.28) | 0.42 (0.04) | 0.99 (0.08) | 0.75 (0.06) | |
| 2 | 1 | 2.15 (0.27) | 1.04 (0.31) | 0.40 (0.03) | 1.00 (0.00) | 0.84 (0.05) | |
| 1.5 | 1.5 | 1.76 (0.36) | 1.75 (0.67) | 0.43 (0.04) | 0.84 (0.36) | 0.73 (0.10) | |
| 2 | 1.5 | 2.41 (0.54) | 1.76 (0.68) | 0.43 (0.04) | 0.89 (0.31) | 0.79 (0.09) | |
| 500 (Method L2) | 1 | 1 | 1.12 (0.10) | 0.96 (0.23) | 0.46 (0.02) | 0.98 (0.15) | 0.64 (0.03) |
| 1.2 | 1 | 1.25 (0.17) | 0.99 (0.22) | 0.43 (0.04) | 0.99 (0.08) | 0.67 (0.04) | |
| 1.5 | 1 | 1.57 (0.21) | 1.02 (0.18) | 0.37 (0.05) | 1.00 (0.00) | 0.76 (0.06) | |
| 2 | 1 | 2.08 (0.27) | 0.94 (0.15) | 0.32 (0.06) | 0.98 (0.15) | 0.82 (0.13) | |
| 1.5 | 1.5 | 1.75 (0.44) | 1.77 (0.64) | 0.40 (0.07) | 0.88 (0.30) | 0.68 (0.12) | |
| 2 | 1.5 | 2.33 (0.83) | 1.50 (0.54) | 0.30 (0.17) | 0.74 (0.43) | 0.55 (0.30) | |
| 500 (Method L3) | 1 | 1 | 1.12 (0.10) | 0.96 (0.24) | 0.45 (0.02) | 0.98 (0.13) | 0.64 (0.03) |
| 1.2 | 1 | 1.25 (0.18) | 0.99 (0.24) | 0.43 (0.04) | 0.99 (0.08) | 0.67 (0.04) | |
| 1.5 | 1 | 1.57 (0.21) | 1.04 (0.20) | 0.37 (0.05) | 1.00 (0.00) | 0.76 (0.06) | |
| 2 | 1 | 2.14 (0.25) | 0.98 (0.19) | 0.32 (0.03) | 1.00 (0.00) | 0.85 (0.05) | |
| 1.5 | 1.5 | 1.76 (0.35) | 1.82 (0.72) | 0.38 (0.05) | 0.95 (0.20) | 0.74 (0.09) | |
| 2 | 1.5 | 2.50 (0.58) | 1.75 (0.81) | 0.35 (0.05) | 0.99 (0.11) | 0.80 (0.09) | |
| 800 (Method L1) | 1 | 1 | 1.11 (0.08) | 0.94 (0.21) | 0.45 (0.02) | 0.99 (0.08) | 0.64 (0.03) |
| 1.2 | 1 | 1.23 (0.16) | 1.04 (0.28) | 0.44 (0.03) | 0.99 (0.08) | 0.68 (0.04) | |
| 1.5 | 1 | 1.59 (0.16) | 1.02 (0.24) | 0.40 (0.03) | 1.00 (0.06) | 0.77 (0.05) | |
| 2 | 1 | 2.10 (0.21) | 1.04 (0.24) | 0.39 (0.03) | 1.00 (0.00) | 0.86 (0.04) | |
| 1.5 | 1.5 | 1.67 (0.26) | 1.72 (0.51) | 0.42 (0.04) | 0.91 (0.28) | 0.75 (0.08) | |
| 2 | 1.5 | 2.32 (0.42) | 1.68 (0.52) | 0.42 (0.04) | 0.92 (0.27) | 0.81 (0.08) | |
| 800 (Method L2) | 1 | 1 | 1.10 (0.07) | 0.97 (0.15) | 0.46 (0.02) | 0.99 (0.08) | 0.64 (0.02) |
| 1.2 | 1 | 1.22 (0.15) | 1.01 (0.17) | 0.43 (0.03) | 1.00 (0.00) | 0.67 (0.04) | |
| 1.5 | 1 | 1.57 (0.14) | 1.00 (0.15) | 0.36 (0.04) | 1.00 (0.00) | 0.78 (0.05) | |
| 2 | 1 | 2.06 (0.19) | 0.94 (0.12) | 0.31 (0.03) | 0.99 (0.09) | 0.85 (0.08) | |
| 1.5 | 1.5 | 1.71 (0.30) | 1.75 (0.49) | 0.38 (0.07) | 0.94 (0.22) | 0.70 (0.12) | |
| 2 | 1.5 | 2.16 (0.71) | 1.49 (0.50) | 0.29 (0.16) | 0.76 (0.42) | 0.57 (0.31) | |
| 800 (Method L3) | 1 | 1 | 1.10 (0.08) | 0.96 (0.16) | 0.46 (0.02) | 0.99 (0.08) | 0.64 (0.02) |
| 1.2 | 1 | 1.22 (0.15) | 1.01 (0.18) | 0.43 (0.03) | 1.00 (0.00) | 0.67 (0.04) | |
| 1.5 | 1 | 1.57 (0.14) | 1.01 (0.16) | 0.36 (0.04) | 1.00 (0.00) | 0.78 (0.05) | |
| 2 | 1 | 2.09 (0.18) | 0.98 (0.13) | 0.31 (0.03) | 1.00 (0.00) | 0.87 (0.04) | |
| 1.5 | 1.5 | 1.67 (0.25) | 1.74 (0.52) | 0.36 (0.05) | 0.99 (0.09) | 0.77 (0.08) | |
| 2 | 1.5 | 2.39 (0.40) | 1.64 (0.68) | 0.34 (0.05) | 1.00 (0.04) | 0.82 (0.08) | |
| 1,000 (Method L1) | 1 | 1 | 1.10 (0.07) | 0.94 (0.19) | 0.45 (0.01) | 0.99 (0.11) | 0.64 (0.02) |
| 1.2 | 1 | 1.21 (0.14) | 1.03 (0.27) | 0.44 (0.03) | 0.98 (0.13) | 0.68 (0.04) | |
| 1.5 | 1 | 1.58 (0.14) | 1.03 (0.22) | 0.40 (0.03) | 1.00 (0.00) | 0.78 (0.05) | |
| 2 | 1 | 2.08 (0.18) | 1.03 (0.21) | 0.38 (0.02) | 1.00 (0.00) | 0.87 (0.04) | |
| 1.5 | 1.5 | 1.65 (0.22) | 1.69 (0.41) | 0.42 (0.04) | 0.93 (0.24) | 0.77 (0.07) | |
| 2 | 1.5 | 2.28 (0.35) | 1.66 (0.42) | 0.42 (0.04) | 0.95 (0.23) | 0.82 (0.08) | |
| 1,000 (Method L2) | 1 | 1 | 1.08 (0.07) | 0.97 (0.13) | 0.46 (0.02) | 1.00 (0.00) | 0.63 (0.01) |
| 1.2 | 1 | 1.21 (0.13) | 1.01 (0.15) | 0.43 (0.03) | 0.99 (0.08) | 0.67 (0.04) | |
| 1.5 | 1 | 1.57 (0.12) | 1.00 (0.13) | 0.35 (0.03) | 1.00 (0.00) | 0.79 (0.05) | |
| 2 | 1 | 2.07 (0.15) | 0.93 (0.09) | 0.31 (0.02) | 1.00 (0.00) | 0.86 (0.03) | |
| 1.5 | 1.5 | 1.66 (0.24) | 1.66 (0.39) | 0.37 (0.07) | 0.96 (0.19) | 0.71 (0.12) | |
| 2 | 1.5 | 2.17 (0.64) | 1.44 (0.36) | 0.29 (0.14) | 0.81 (0.39) | 0.61 (0.30) | |
| 1,000 (Method L3) | 1 | 1 | 1.09 (0.07) | 0.97 (0.14) | 0.46 (0.02) | 1.00 (0.00) | 0.64 (0.01) |
| 1.2 | 1 | 1.21 (0.13) | 1.01 (0.16) | 0.43 (0.03) | 0.99 (0.08) | 0.67 (0.04) | |
| 1.5 | 1 | 1.57 (0.13) | 1.01 (0.13) | 0.35 (0.03) | 1.00 (0.00) | 0.79 (0.05) | |
| 2 | 1 | 2.08 (0.18) | 0.97 (0.13) | 0.31 (0.02) | 1.00 (0.00) | 0.88 (0.03) | |
| 1.5 | 1.5 | 1.66 (0.24) | 1.70 (0.48) | 0.36 (0.05) | 0.99 (0.08) | 0.78 (0.08) | |
| 2 | 1.5 | 2.38 (0.37) | 1.57 (0.61) | 0.33 (0.04) | 1.00 (0.01) | 0.83 (0.08) |