Table 1. .
Model Results Examining the Effect of COMT, Estradiol Levels (within- and between-centered), and their Interaction on 2- and 3-back Lure Accuracy
| Dependent Variable | Fixed Effect | Estimate | Standard Error | t | p (two-tailed) |
|---|---|---|---|---|---|
| Two-back accuracy | – | – | – | – | – |
| Intercept | .73 | .02 | 32.12 | .000* | |
| Estradiol levels (within-centered) | .06 | .02 | 2.64 | .01 | |
| Estradiol levels (between-centered) | −.03 | .04 | −.90 | .37 | |
| COMT | .07 | .03 | 2.05 | .04* | |
| COMT × Estradiol Levels (within-centered) | −.11 | .03 | −3.03 | .003* | |
| COMT × Estradiol Levels (between-centered) | .07 | .07 | 1.06 | .29 | |
| Zero-back accuracy (within-centered) | −.95 | .51 | −1.87 | .06 | |
| Variance Components | Variance | Standard Deviation | – | – | |
| Intercept | .02 | .13 | |||
| Residual | .01 | .12 | |||
| Dependent Variable | Fixed Effect | Estimate | Standard Error | t | p (two-tailed) |
| Three-back accuracy | – | – | – | – | – |
| Intercept | .66 | .02 | 33.52 | .000* | |
| Estradiol levels (within-centered) | .04 | .03 | 1.36 | .18 | |
| Estradiol levels (between-centered) | −.06 | .03 | −1.94 | .06 | |
| COMT | .02 | .03 | .52 | .60 | |
| COMT × Estradiol Levels (within-centered) | −.05 | .04 | −1.14 | .26 | |
| COMT × Estradiol Levels (between-centered) | .08 | .06 | 1.43 | .16 | |
| Zero-back accuracy (within-centered) | −.54 | .61 | −.89 | .37 | |
| Variance Components | Variance | Standard Deviation | – | – | |
| Intercept | .009 | .10 | |||
| Residual | .02 | .14 | |||
COMT was included as a dummy-coded variable, and Val is the base in the models presented in the table. Laboratory visits (i.e., time) were also included in this model as an effects-coded predictor to control for practice effects (p < .001).