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 | 504.98** | 1.79 | 270.49** | 19.91 | 265.01** | 16.37 | 476.80** | 15.59 |
Level 1 (trial-specific) | ||||||||
Trial | −0.02 | 0.12 | 0.03 | 0.04 | −0.01 | 0.06 | ||
Side | −2.11** | 1.79 | −2.11** | 1.79 | ||||
Level 2 (individual) | ||||||||
Age | 1.17** | 0.21 | 1.17** | 0.21 | ||||
Asian | 12.63** | 5.49 | 12.62** | 5.49 | 10.09** | 2.54 | ||
Black | 23.52** | 10.78 | 23.52** | 10.78 | 26.58** | 5.11 | ||
Hispanic | 7.29** | 6.03 | 7.30** | 6.03 | 13.76** | 2.74 | ||
White | 0a | 0a | 0a | 0a | 0a | 0a | ||
Error rate | −295.66** | 176.72 | −295.90** | 176.67 | ||||
Sleepiness (centered) | 0.09 | 0.56 | 0.10 | 0.56 | ||||
Std. Dev. of Log RT | 1517.02** | 191.91 | 1516.95** | 191.84 | ||||
APOE (0 risk) | 5.25 | 14.55 | 9.34* | 7.18 | 11.91 | 6.89 | ||
(1 risk) | 9.71* | 9.19 | 9.15** | 4.73 | 6.47 | 4.35 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
COMT (0 risk) | −11.84* | 12.37 | −6.78** | 6.39 | −14.87* | 5.83 | ||
(1 risk) | 6.42 | 9.06 | 6.74** | 4.73 | 2.67 | 4.25 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DAT1 (0 risk) | 39.22** | 19.59 | 39.02** | 18.26 | 22.48* | 9.21 | ||
(1 risk) | −2.49 | 7.83 | −2.03 | 7.73 | −0.18 | 3.70 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DBH (0 risk) | −3.39 | 11.02 | 0.67 | 5.69 | −0.04 | 5.19 | ||
(1 risk) | −14.60** | 8.80 | −8.20** | 4.47 | −10.61** | 4.15 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DRD4 (0 risk) | 4.87 | 10.43 | 2.29 | 5.32 | 5.29 | 4.94 | ||
(1 risk) | 11.66** | 9.06 | 11.82** | 4.57 | 13.75** | 4.29 | ||
(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 | −0.19** | 0.17 | −0.19** | 0.15 | −0.19* | 0.08 | ||
(1 risk) | −0.06 | 0.07 | −0.06* | 0.07 | −0.06 | 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 | 6817.78** | 0.18 | 6814.26** | 0.18 | 8216.45** | 0.22 | ||
Number of parameters | 2 | 31 | 23 | 26 | ||||
Schwarz’s Bayesian criterion (BIC) | −6108.62 | −4872.73 | −5003.79 | −4520.07 |