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. 2017 Dec 8;4(6):ENEURO.0311-16.2017. doi: 10.1523/ENEURO.0311-16.2017

Table 2.

Power calculations were performed via simulation with 1000 iterations via the simr package (Green and MacLeod, 2016)

Model Predictor Data Structure Type of test Lower Upper
a chan[cz] Asymptotically normal Wald z test 0.000 0.004
a chan[pz] Asymptotically normal Wald z test 0.966 0.985
a index Asymptotically normal Wald z test 0.854 0.896
a freq.class Asymptotically normal Wald z test 0.000 0.004
a index:freq.class Asymptotically normal Wald z test 0.000 0.004
b chan[cz] Asymptotically normal Wald z test 0.000 0.004
b chan[pz] Asymptotically normal Wald z test 0.966 0.985
b index Asymptotically normal Wald z test 0.231 0.286
b rel.freq.class Asymptotically normal Wald z test 0.000 0.004
b index:rel.freq.class Asymptotically normal Wald z test 0.000 0.007
c chan[cz] Asymptotically normal Wald z test 0.002 0.012
c chan[pz] Asymptotically normal Wald z test 0.663 0.721
c animacy[−] Asymptotically normal Wald z test 0.009 0.026
c morphology[−] Asymptotically normal Wald z test 0.991 0.999
c morphology[+] Asymptotically normal Wald z test 0.000 0.004
c position[−] Asymptotically normal Wald z test 0.000 0.004
c animacy[−]:morphology[−] Asymptotically normal Wald z test 0.010 0.027
c animacy[−]:morphology[+] Asymptotically normal Wald z test 0.086 0.125
c animacy[−]:position[−] Asymptotically normal Wald z test 0.000 0.004
c morphology[−]:position[−] Asymptotically normal Wald z test 0.147 0.195
c morphology[+]:position[−] Asymptotically normal Wald z test 0.000 0.004
c animacy[−]:morphology[−]:position[−] Asymptotically normal Wald z test 0.006 0.020
c animacy[−]:morphology[+]:position[−] Asymptotically normal Wald z test 0.000 0.006
d chan Asymptotically normal Type-II Wald χ2 0.610 0.671
d animacy Asymptotically normal Type-II Wald χ 2 0.179 0.230
d morphology Asymptotically normal Type-II Wald χ 2 0.996 1.000
d position Asymptotically normal Type-II Wald χ 2 0.964 0.985
d animacy:morphology Asymptotically normal Type-II Wald χ 2 0.173 0.223
d animacy:position Asymptotically normal Type-II Wald χ 2 0.182 0.233
d morphology:position Asymptotically normal Type-II Wald χ 2 0.917 0.949
d animacy:morphology:position Asymptotically normal Type-II Wald χ 2 0.178 0.229
e chan Asymptotically normal Type-II Wald χ 2 0.611 0.672
e index Asymptotically normal Type-II Wald χ 2 0.594 0.655
e freq.class Asymptotically normal Type-II Wald χ 2 0.991 0.999
e animacy Asymptotically normal Type-II Wald χ 2 0.037 0.065
e morphology Asymptotically normal Type-II Wald χ 2 0.994 1.000
e position Asymptotically normal Type-II Wald χ 2 0.922 0.953
e index:freq.class Asymptotically normal Type-II Wald χ 2 0.888 0.925
e index:animacy Asymptotically normal Type-II Wald χ 2 0.178 0.228
e freq.class:animacy Asymptotically normal Type-II Wald χ 2 0.064 0.099
e index:morphology Asymptotically normal Type-II Wald χ 2 0.461 0.523
e freq.class:morphology Asymptotically normal Type-II Wald χ 2 0.980 0.994
e animacy:morphology Asymptotically normal Type-II Wald χ 2 0.169 0.219
e index:position Asymptotically normal Type-II Wald χ 2 0.264 0.321
e freq.class:position Asymptotically normal Type-II Wald χ 2 0.025 0.049
e animacy:position Asymptotically normal Type-II Wald χ 2 0.071 0.107
e morphology:position Asymptotically normal Type-II Wald χ 2 0.718 0.773
e index:freq.class:animacy Asymptotically normal Type-II Wald χ 2 0.037 0.065
e index:freq.class:morphology Asymptotically normal Type-II Wald χ 2 0.358 0.419
e index:animacy:morphology Asymptotically normal Type-II Wald χ 2 0.884 0.922
e freq.class:animacy:morphology Asymptotically normal Type-II Wald χ 2 0.753 0.805
e index:freq.class:position Asymptotically normal Type-II Wald χ 2 0.386 0.448
e index:animacy:position Asymptotically normal Type-II Wald χ 2 0.763 0.815
e freq.class:animacy:position Asymptotically normal Type-II Wald χ 2 0.345 0.406
e index:morphology:position Asymptotically normal Type-II Wald χ 2 0.269 0.326
e freq.class:morphology:position Asymptotically normal Type-II Wald χ 2 0.146 0.194
e animacy:morphology:position Asymptotically normal Type-II Wald χ 2 0.129 0.175
e index:freq.class:animacy:morphology Asymptotically normal Type-II Wald χ 2 0.259 0.316
e index:freq.class:animacy:position Asymptotically normal Type-II Wald χ 2 0.435 0.497
e index:freq.class:morphology:position Asymptotically normal Type-II Wald χ 2 0.414 0.476
e index:animacy:morphology:position Asymptotically normal Type-II Wald χ 2 0.208 0.262
e freq.class:animacy:morphology:position Asymptotically normal Type-II Wald χ 2 0.932 0.961
e index:freq.class:animacy:morphology:position Asymptotically normal Type-II Wald χ 2 0.488 0.550
f chan Asymptotically normal Type-II Wald χ 2 0.611 0.672
f rel.freq.class Asymptotically normal Type-II Wald χ 2 0.846 0.889
f freq.class Asymptotically normal Type-II Wald χ 2 0.891 0.927
f animacy Asymptotically normal Type-II Wald χ 2 0.192 0.244
f morphology Asymptotically normal Type-II Wald χ 2 0.996 1.000
f position Asymptotically normal Type-II Wald χ 2 0.677 0.734
f rel.freq.class:freq.class Asymptotically normal Type-II Wald χ 2 0.837 0.881
f rel.freq.class:animacy Asymptotically normal Type-II Wald χ 2 0.994 1.000
f freq.class:animacy Asymptotically normal Type-II Wald χ 2 0.334 0.395
f rel.freq.class:morphology Asymptotically normal Type-II Wald χ 2 0.084 0.122
f freq.class:morphology Asymptotically normal Type-II Wald χ 2 0.983 0.996
f animacy:morphology Asymptotically normal Type-II Wald χ 2 0.666 0.724
f rel.freq.class:position Asymptotically normal Type-II Wald χ 2 0.905 0.939
f freq.class:position Asymptotically normal Type-II Wald χ 2 0.225 0.280
f animacy:position Asymptotically normal Type-II Wald χ 2 0.406 0.468
f morphology:position Asymptotically normal Type-II Wald χ 2 0.978 0.993
f rel.freq.class:freq.class:animacy Asymptotically normal Type-II Wald χ 2 0.067 0.102
f rel.freq.class:freq.class:morphology Asymptotically normal Type-II Wald χ 2 0.276 0.334
f rel.freq.class:animacy:morphology Asymptotically normal Type-II Wald χ 2 0.242 0.298
f freq.class:animacy:morphology Asymptotically normal Type-II Wald χ 2 0.895 0.931
f rel.freq.class:freq.class:position Asymptotically normal Type-II Wald χ 2 0.361 0.422
f rel.freq.class:animacy:position Asymptotically normal Type-II Wald χ 2 0.085 0.124
f freq.class:animacy:position Asymptotically normal Type-II Wald χ 2 0.696 0.752
f rel.freq.class:morphology:position Asymptotically normal Type-II Wald χ 2 0.061 0.095
f freq.class:morphology:position Asymptotically normal Type-II Wald χ 2 0.405 0.467
f animacy:morphology:position Asymptotically normal Type-II Wald χ 2 0.195 0.247
f rel.freq.class:freq.class:animacy:morphology Asymptotically normal Type-II Wald χ 2 0.281 0.340
f rel.freq.class:freq.class:animacy:position Asymptotically normal Type-II Wald χ 2 0.054 0.087
f rel.freq.class:freq.class:morphology:position Asymptotically normal Type-II Wald χ 2 0.066 0.101
f rel.freq.class:animacy:morphology:position Asymptotically normal Type-II Wald χ 2 0.336 0.397

“Lower” and “upper” are the bounds of the 95% confidence interval on the power estimates. No power estimates are provided for model comparisons, because it is not entirely clear which model to use as the simulation basis, especially for non-nested models. We note moreover that observed power calculations are problematic (Hoenig and Heisey, 2001) and indeed closely follows the observed significance (as implemented here: |t| > 2 or p < 0.05).