Table 2.
Power for Executive Function Analyses
|
Simulated Correlations |
1-β; α = .05 and N=386 |
Required N; α = .05 and 1−β = .8 |
Required N; α = .01 and 1−β = .8 |
Required N; α = .006 and 1−β = .8 |
|---|---|---|---|---|
| .50 | 1 | 57 | 84 | 94 |
| .40 | .999 | 91 | 135 | 151 |
| .30 | .990 | 165 | 245 | 274 |
| .20 | .811 | 375 | 558 | 625 |
| .10 | .294 | 1510 | 2247 | 2519 |
Note. Power analysis for the executive functions (EFs) latent-variable model where simulated correlations represent a theoretical correlation between common EF and the polygenic risk score. 1−β = power; α = alpha; N = number of participants included in parameter estimates.