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 | 479.66** | 1.61 | 266.83** | 17.92 | 268.31** | 14.68 | 435.62** | 13.60 |
Level 1 (trial-specific) | ||||||||
Trial | −0.01 | 0.11 | −0.02 | 0.03 | −0.01 | 0.05 | ||
Side | −1.68* | 1.63 | −1.69* | 1.63 | ||||
Level 2 (individual) | ||||||||
Age | 1.02** | 0.19 | 1.02** | 0.19 | ||||
Asian | 13.72** | 5.02 | 13.68** | 5.02 | 10.85** | 2.29 | ||
Black | 17.15** | 9.88 | 17.13** | 9.89 | 19.42** | 4.61 | ||
Hispanic | 2.36 | 5.47 | 2.36 | 5.48 | 7.95** | 2.44 | ||
White | 0a | 0a | 0a | 0a | 0a | 0a | ||
Error rate | −273.99** | 160.57 | −272.92** | 160.72 | ||||
Sleepiness (centered) | 0.31 | 0.51 | 0.31 | 0.51 | ||||
Std. Dev. of Log RT | 1221.08** | 174.93 | 1218.86** | 175.10 | ||||
APOE (0 risk) | 9.67 | 12.84 | 12.43** | 6.57 | 15.10* | 5.99 | ||
(1 risk) | 8.24* | 8.13 | 9.07** | 4.31 | 5.64 | 3.79 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
COMT (0 risk) | −9.68* | 11.02 | −5.01* | 5.81 | −12.11* | 5.11 | ||
(1 risk) | 7.88* | 8.06 | 10.68** | 4.32 | 4.77 | 3.71 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DAT1 (0 risk) | 40.38** | 17.81 | 28.30** | 9.18 | 24.63** | 8.23 | ||
(1 risk) | 4.50 | 6.94 | −0.36 | 3.61 | 6.13 | 3.22 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DBH (0 risk) | −0.12 | 9.80 | 3.04 | 5.16 | 2.16 | 4.55 | ||
(1 risk) | −6.38 | 7.81 | −5.49** | 4.07 | −2.99 | 3.63 | ||
(2 risk) | 0a | 0a | 0a | 0a | 0a | 0a | ||
DRD4 (0 risk) | 13.79** | 9.26 | 6.25** | 4.83 | 13.32** | 4.32 | ||
(1 risk) | 13.52** | 8.06 | 11.93** | 4.16 | 15.10** | 3.75 | ||
(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 | NS | NS | NS | NS | ||||
DBH (0 risk)*Trial | NS | NS | NS | NS | ||||
DRD4 (0 risk)*Trial | −0.08* | 0.08 | −0.07 | 0.04 | ||||
(1 risk) | −0.02 | 0.07 | −0.01 | 0.03 | ||||
(2 risk) | 0a | 0a | 0a | 0a | ||||
Covariance parameters | ||||||||
Repeated measures | 5751.24** | 0.16 | 5763.32** | 0.16 | 6703.64** | 0.19 | ||
Number of parameters | 2 | 31 | 23 | 26 | ||||
Schwarz’s Bayesian criterion (BIC) | −6475.39 | −5104.74 | −5263.70 | −4816.56 |