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Journal of Probability and Statistics
/
2013
/
Article
/
Tab 1
/
Research Article
Testing for Main Random Effects in Two-Way Random and Mixed Effects Models: Modifying the
Statistic
Table 1
Comparison of achieved type I error rates and power for
,
, and
with
tests for the random and mixed effects models.
Random effects model
Mixed effects model
Balanced
Unbalanced
Balanced
Unbalanced
Homo.
.054
.220
.111
.247
.049
.167
.092
.198
.065
.047
.112
.099
.063
.045
.109
.086
.053
.229
.123
.265
.069
NA
.140
NA
.227
.187
.318
.296
.184
.138
.260
.228
.125
.337
.221
.367
.113
NA
.201
NA
.761
.719
.820
.804
.542
.489
.634
.638
.236
.532
.369
.563
.234
NA
.360
NA
.975
.963
.982
.982
.888
.863
.920
.917
Hetero.
.045
.150
.089
.182
.015
.230
.042
.303
.070
.056
.106
.100
.062
.935
.107
.952
.045
.160
.088
.199
.021
NA
.053
NA
.077
.060
.129
.121
.074
NA
.124
NA
.114
.273
.190
.316
.047
NA
.094
NA
.151
.129
.221
.215
.104
NA
.152
NA
.195
.430
.318
.467
.117
NA
.215
NA
.270
.235
.353
.341
.131
NA
.189
NA