Table 3.
Monte Carlo Analyses of Unstandardized Coefficients (bs) for the Group Difference in Slopes for a Linear Latent Growth Model as a Function of Sample Size and Estimation Method
| Monte Carlo Results | Bias Estimates | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
N |
SD |
Avg |
Coverage |
SE |
Percent |
CI |
|||||
| Delta | BTSP | Delta | BTSP | Delta | BTSP | Delta | BTSP | Delta | BTSP | ||
| 50 | .1258 | .1216 | .1250 | .937 | .942 | −.0042 | −.0008 | 3.34 | .64 | .013 | .008 |
| 100 | .0878 | .0866 | .0876 | .943 | .944 | −.0012 | −.0002 | 1.37 | .23 | .007 | .006 |
| 150 | .0720 | .0708 | .0713 | .942 | .943 | −.0012 | −.0007 | 1.67 | .97 | .008 | .007 |
| 250 | .0554 | .0550 | .0552 | .947 | .949 | −.0004 | −.0002 | .72 | .36 | .003 | .001 |
| 500 | .0394 | .0390 | .0391 | .945 | .946 | −.0004 | −.0003 | 1.02 | .76 | .005 | .004 |
| Mdn | .943 | .944 | 1.37 | .64 | .007 | .006 | |||||
Note. Avg = average SE of b across replications, Coverage = 95% coverage for b, CI = 95% confidence interval, Delta = delta method, BTSP = bootstrap.. Unlike in Table 1, results are not reported separately for small and medium effect sizes because findings did not vary by effect size for b, and the equations approach is not applicable.