Incorporating the Theory of Planned Behaviour into Distracted Driving: Influencing Factors and Intervention Effects

Table 8

TPB three factors’ T-test in the second questionnaire survey and third questionnaire survey.

	Second questionnaire survey M(SD)	Third questionnaire survey M(SD)	The amount of changes	T
Subjective norm	3.04 (0.31)	3.01 (0.29)	−0.03	0.102	0.48
Behaviour attitude	2.03 (0.29)	1.98 (0.26)	−0.05	0.481	0.32
Perceived behavioural control	2.51 (0.40)	2.43 (0.38)	−0.08	1.115	0.14