. Author manuscript; available in PMC: 2016 Feb 16.

Published in final edited form as: Anal Methods Accid Res. 2015 Jan;5-6:17–27. doi: 10.1016/j.amar.2014.12.001

Table 1.

Parameter estimates, standard errors and p-values for: (1) logistic regression and (2) linear regression, which are stacked in the first column, and (3) CREM in the second column.

Uncorrelated

Correlated Random Effects

Estimate(SE)

p >|t|

Estimate(SE)

p >|t|

Logistic regression (Binary)

Intercept

.76(.31)

.02

.75(.31)

.02

Intersection 3.0(s)

1.45(.14)

< .01

1.45(.14)

< .01

Intersection 3.4(s)

2.88(.18)

< .01

2.87(.18)

< .01

Passenger presence

−.08(.18)

.66

−.08(.18)

.65

Passenger type

−.72(.43)

.10

−.71(.44)

.10

Passenger presence*passenger type

−.81(.25)

< .01

−.80(.25)

< .01

σ_{b}^{2}

2.17(.51)

< .01

2.17(.51)

< .01

Linear regression (Normal)

Intercept

.62(.04)

< .01

.64(.04)

< .01

Intersection 3.0(s)

.17(.01)

< .01

.17(.01)

< .01

Intersection 3.4(s)

.32(.02)

< .01

.33(.02)

< .01

Passenger presence

.07(.02)

< .01

.07(.02)

< .01

Passenger type

−.02(.05)

.67

−.04(.05)

.44

Passenger presence*passenger type

−.14(.03)

< .01

−.14(.03)

< .01

σ_{c}^{2}

.02(.01)

< .01

.03(.01)

< .01

σ_{e}^{2}

.02(.00)

< .01

.02(.00)

< .01

ρσ_bσ_c

.08(.04)

.07

−2×log likelihood

2064.08

2060.19