Modeling Injury Severity for Nighttime and Daytime Crashes by Using Random Parameter Logit Models Accounting for Heterogeneity in Means and Variances

Table 4

Goodness-of-fit measure of random parameter logit approaches for all-time.

Model	Log-likelihood	AIC	BIC	R^2
Random parameter logit model only	−277.31	670.63	1018.87	0.16
With heterogeneity in means	−263.45	652.18	994.58	0.19
With heterogeneity in means and variances	−256.24	641.84	947.48	0.23