Investigating Contributing Factors on Aggressive Driving Based on a Structural Equation Model

Table 3

Definitions of SEM elements [9].

Measurement model	X	q × 1 column vector of observed exogenous variables
	Y	p × 1 column vector of observed endogenous variables
	ξ	n × 1 column vector of observed exogenous variables
	η	m × 1 column vector of observed endogenous variables
	δ	q × 1 column vector of measurement error terms for observed variables x
	ε	p × 1 column vector of measurement error terms for observed variables y
	Λx	Matrix (q × n) of structural coefficients for latent exogenous variables based on their observed indicator variables
	Λy	Matrix (p × m) of structural coefficients for latent endogenous variables based on their observed indicator variables
Structural model	Г	Matrix (m × n) of direct effects among endogenous latent variables
	B	m × 1 column vector of the error terms
	ξ	Vector of exogenous latent variables
	η	Vector of endogenous latent variables
	ζ	Estimation error associated with the endogenous variables