Table 2.

Differences in excessive mobile phone use and mobile phone use while driving between at-risk and non-at-risk groups of work addiction

	Non-at-risk group of work addiction – T1			At-risk group of work addiction – T1			t (df)	p	d
	N	M	SD	N	M	SD
T1 PMPUQ-D	1,802	14.61	4.27	59	14.55	3.67	0.093 (1859)	0.926	0.015
T2 PMPUQ-D	1,802	15.36	4.31	59	14.35	3.80	1.777 (1859)	0.076	0.248
T3 PMPUQ-D	1,802	16.39	4.51	59	13.42	4.43	4.966 (1859)	<0.001	0.664
T1 MPUWD	1,802	4.46	4.24	59	4.10	4.56	0.644 (1859)	0.520	0.081
T2 MPUWD	1,802	4.33	3.71	59	5.05	4.84	−1.123 (60.25)	0.266	0.166
T3 MPUWD	1,802	3.96	3.12	59	5.64	4.90	−2.618 (59.55)	<0.001	0.409

Note. BWAS, Bergen Work Addiction Scale; PMPUQ-D, Dependency scale of the Problematic Mobile Phone Use Questionnaire; MPUWD, mobile phone use while driving; T1, Time 1; T2, Time 2; T3, Time 3.