Research Article
The Use of Mixed Models for the Analysis of Mediated Data with Time-Dependent Predictors
Table 4
Type I error rates for mediated structural equation models and linear mixed models at various sample sizes.
| Simulated data | Unrestricted | Delayed effect | Constant effect | Time interaction | Time point | Sample size | SEM | LMM | SEM | LMM | SEM | LMM | LMM |
| | 100 | 0.050 | 0.050 | 0.053 | 0.053 | 0.05 | 0.053 | 0.053 | | 100 | 0.064 | 0.072 | 0.053 | 0.053 | 0.05 | 0.053 | 0.065 | | 100 | 0.038 | 0.039 | 0.053 | 0.053 | 0.05 | 0.053 | 0.053 | | 100 | 0.047 | 0.051 | 0.045 | 0.043 | 0.05 | 0.053 | 0.045 | | 100 | 0.048 | 0.051 | 0.045 | 0.043 | 0.05 | 0.053 | 0.041 | | 100 | 0.050 | 0.053 | 0.045 | 0.043 | 0.05 | 0.053 | 0.038 |
| | 350 | 0.053 | 0.053 | 0.048 | 0.046 | 0.030 | 0.031 | 0.054 | | 350 | 0.044 | 0.044 | 0.048 | 0.046 | 0.030 | 0.031 | 0.047 | | 350 | 0.051 | 0.051 | 0.048 | 0.046 | 0.030 | 0.031 | 0.032 | | 350 | 0.049 | 0.049 | 0.046 | 0.045 | 0.030 | 0.031 | 0.038 | | 350 | 0.038 | 0.038 | 0.046 | 0.045 | 0.030 | 0.031 | 0.046 | | 350 | 0.052 | 0.052 | 0.046 | 0.045 | 0.030 | 0.031 | 0.049 |
| | 500 | 0.058 | 0.064 | 0.047 | 0.045 | 0.054 | 0.053 | 0.052 | | 500 | 0.048 | 0.048 | 0.047 | 0.045 | 0.054 | 0.053 | 0.049 | | 500 | 0.049 | 0.046 | 0.047 | 0.045 | 0.054 | 0.053 | 0.054 | | 500 | 0.049 | 0.050 | 0.048 | 0.048 | 0.054 | 0.053 | 0.047 | | 500 | 0.051 | 0.048 | 0.048 | 0.048 | 0.054 | 0.053 | 0.048 | | 500 | 0.046 | 0.047 | 0.048 | 0.048 | 0.054 | 0.053 | 0.044 |
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Based on 1000 simulated datasets.
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