Table 4.
Performance of EMC and EH Estimators, by Interval Width
| Estimator | Interval Width (months) |
% Correct Interval Estimatesa (1) |
% Inferential Errors |
% Bias |
|||
|---|---|---|---|---|---|---|---|
| False Positivesb (2) |
False Negativesc (3) |
Interceptd (4) |
Slopee (5) |
Covariatesf (6) |
|||
| EMC | 12 | 87.5 | 3.1 | 25.0 | 82.6 | 18.5 | 4.2 |
| 24 | 81.3 | 0.0 | 37.5 | 113.8 | 26.3 | –19.1 | |
| EH | 12 | 71.9 | 3.1 | 21.9 | 84.4 | 26.6 | –2.9 |
| 24 | 71.9 | 3.1 | 28.1 | 135.2 | 30.7 | –11.5 | |
a
Interval estimates are coded as correct if they include the complete-data point estimate.
b
The interval-data estimator rejects H0, while the complete-data estimator fails to reject H0.
c
The interval-data estimator fails to reject H0, while the complete-data estimator rejects H0.
d
Average over all 8 intercepts (see Table 3).
e
Average over 6 slope (age) coefficients that are significantly different from 0 in Table 3.
f
Average over 9 covariate effect coefficients that are significantly different from 0 in Table 3.