TABLE 5.
Standard Errors and Statistical Power for Parameter Estimates of Path Loadings by Sample Size
| Path | Sample Size |
|||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 |
15 |
20 |
||||||||||||||||
| Contl | 1 – β | 95% CI | Clin | 1 – β | 95% CI | Contl | 1 – β | 95% CI | Clin | 1 – β | 95% CI | Contl | 1 – β | 95% CI | Clin | 1 – β | 95% CI | |
| LRO ← RM1 | .15 | .76 | .81 | .25 | .60 | .81 | .13 | .85 | .86 | .21 | .67 | .87 | .11 | .95 | .91 | .19 | .78 | .90 |
| LAUD ← CING | .14 | .70 | .80 | .38 | .22 | .80 | .16 | .82 | .92 | .32 | .16 | .89 | .14 | .92 | .90 | .19 | .38 | .92 |
| RAUD ← CING | .20 | .34 | .80 | .31 | .35 | .80 | .17 | .31 | .90 | .26 | .38 | .88 | .15 | .34 | .90 | .23 | .47 | .88 |
| RRO ← LM1 | .46 | .15 | .88 | .27 | .65 | .87 | .37 | .13 | .91 | .18 | .80 | .91 | .33 | .13 | .92 | .16 | .88 | .92 |
| LM1 ← SMA | .14 | .24 | .87 | .39 | .21 | .88 | .11 | .26 | .92 | .32 | .25 | .92 | .09 | .33 | .92 | .27 | .29 | .92 |
| RM1 ← SMA | .16 | .68 | .84 | .34 | .40 | .82 | .13 | .75 | .90 | .28 | .50 | .90 | .12 | .88 | .91 | .24 | .56 | .91 |
| LAUD ← RRO | .19 | .79 | .82 | .26 | .30 | .84 | .16 | .92 | .90 | .21 | .34 | .89 | .14 | .97 | .90 | .19 | .38 | .92 |
| RM1 ← LAUD | .22 | .49 | .84 | .30 | .19 | .83 | .18 | .57 | .90 | .25 | .15 | .88 | .16 | .69 | .90 | .21 | .14 | .91 |
| Path |
Sample Size |
|||||||||||||||||
|
25 |
50 |
100 |
||||||||||||||||
| Contl | 1 – β | 95% CI | Clin | 1 – β | 95% CI | Contl | 1 – β | 95% CI | Clin | 1 – β | 95% CI | Contl | 1 – β | 95% CI | Clin | 1 – β | 95% CI | |
| LRO ← RM1 | .10 | .96 | .91 | .16 | .88 | .91 | .07 | 1.00 | .93 | .12 | .98 | .94 | .05 | 1.00 | .94 | .08 | 1.00 | .95 |
| LAUD ← CING | .12 | .13 | .91 | .17 | .42 | .91 | .06 | 1.00 | .95 | .18 | .19 | .94 | .06 | 1.00 | .94 | .08 | 0.91 | .94 |
| RAUD ← CING | .14 | .92 | .92 | .21 | .50 | .92 | .10 | 0.56 | .94 | .15 | .75 | .94 | .07 | 0.86 | .94 | .10 | 0.97 | .94 |
| RRO ← LM1 | .29 | .74 | .92 | .14 | .94 | .92 | .21 | 0.23 | .93 | .10 | 1.00 | .94 | .14 | 0.32 | .94 | .07 | 1.00 | .96 |
| LM1 ← SMA | .08 | .35 | .92 | .25 | .33 | .92 | .06 | 0.58 | .96 | .17 | .53 | .94 | .04 | 0.85 | .94 | .12 | 0.80 | .94 |
| RM1 ← SMA | .10 | .91 | .90 | .22 | .66 | .90 | .07 | 1.00 | .94 | .15 | .91 | .94 | .05 | 1.00 | .94 | .11 | 1.00 | .94 |
| LAUD ← RRO | .12 | .99 | .91 | .17 | .42 | .91 | .09 | 1.00 | .95 | .12 | .68 | .94 | .06 | 1.00 | .94 | .08 | 0.91 | .94 |
| RM1 ← LAUD | .15 | .74 | .90 | .20 | .14 | .90 | .10 | 0.95 | .95 | .14 | .19 | .93 | .07 | 1.00 | .93 | .10 | 0.29 | .95 |
Note. Contl = control group Monte Carlo estimates; Clin = clinical group Monte Carlo estimates; 1 – β = power of statistical power to recover population parameters; 95% CI = proportion of replications for which the 95% confidence interval contains the true population parameter value; LRO = left rolandic operculum; RM1 = right primary motor cortex; LAUD = left auditory cortex; CING = cingulate cortex; RAUD = right auditory cortex; RRO = right rolandic operculum; LM1 = left primary motor cortex; SMA = supplementary motor area.