From: Genetic contributions to attentional response time slopes across repeated trials
Parameter | Empty model | Full model | Non-significant interaction removed | Covariates removed | ||||
---|---|---|---|---|---|---|---|---|
Mean | SE | Mean | SE | Mean | SE | Mean | SE | |
Fixed effects | ||||||||
Intercept | 461.40** | 1.85 | 269.02** | 21.48 | 263.75** | 17.88 | 428.23** | 15.85 |
Level 1 (trial-specific) | ||||||||
Trial | −0.03 | 0.13 | 0.01 | 0.04 | −0.03 | 0.06 | ||
Side | −3.23** | 1.96 | −3.23** | 1.96 | ||||
Level 2 (individual) | ||||||||
Age | 1.20** | 0.23 | 1.20** | 0.23 | ||||
Asian | 10.27** | 6.04 | 10.24** | 6.04 | 5.68* | 2.69 | ||
Black | 19.23** | 11.84 | 19.23** | 11.83 | 20.58** | 5.38 | ||
Hispanic | 3.73 | 6.58 | 3.73 | 6.58 | 7.84** | 2.86 | ||
White | 0a | 0a | 0a | 0a | 0a | 0a | ||
Error rate | −295.29** | 191.84 | −295.91** | 191.74 | ||||
Sleepiness (centered) | 0.50 | 0.62 | 0.50 | 0.62 | ||||
Std. Dev. of Log RT | 1017.83** | 209.69 | 1017.63** | 209.58 | ||||
APOE (0 risk) | 5.10 | 15.26 | 8.50* | 7.89 | 10.72 | 6.93 | ||
(1 risk) | 7.70 | 9.65 | 10.97** | 5.18 | 5.86 | 4.38 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
COMT (0 risk) | −9.88 | 13.09 | −7.11* | 6.98 | −11.93* | 5.91 | ||
(1 risk) | 13.59** | 9.60 | 11.42** | 5.19 | 10.59* | 4.30 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DAT1 (0 risk) | 41.25** | 20.95 | 42.17 | 19.66** | 26.69** | 9.42 | ||
(1 risk) | 5.24 | 8.27 | 5.73 | 8.17 | 6.49 | 3.74 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DBH (0 risk) | −2.28 | 11.63 | 2.24 | 6.21 | 1.10 | 5.25 | ||
(1 risk) | −11.52** | 9.30 | −8.05** | 4.89 | −7.46 | 4.20 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DRD4 (0 risk) | 1.96 | 11.02 | −0.81 | 5.81 | 0.77 | 5.00 | ||
(1 risk) | 10.18* | 9.57 | 11.14** | 5.00 | 10.96* | 4.34 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
APOE (0 risk)*Trial | NS | NS | NS | NS | ||||
COMT (0 risk)*Trial | NS | NS | NS | NS | ||||
DAT1 (0 risk)*Trial | −0.16* | 0.18 | −0.17** | 0.16 | −0.16* | 0.08 | ||
(1 risk) | −0.05 | 0.07 | −0.05 | 0.07 | −0.05 | 0.03 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DBH (0 risk)*Trial | NS | NS | NS | NS | ||||
DRD4 (0 risk)*Trial | NS | NS | NS | NS | ||||
Covariance parameters | ||||||||
Repeated measures | 8348.67** | 0.24 | 8340.00** | 0.24 | 9330.38** | 0.27 | ||
Number of parameters | 2 | 31 | 23 | 26 | ||||
Schwarz’s Bayesian criterion (BIC) | −5503.84 | −4716.22 | −4306.30 | −3975.20 |