Table 2.

Vigilance performance trend analysis.

Assumption tests and trend analyses	Dynamic across all screens	Static across all screens	Dynamic left	Static left	Dynamic center	Static center	Dynamic right	Static right
Durbin-Watson D Statistic	0.516	1.178	1.553	1.053	1.507	0.917	1.108	1.850
D-lower	1.352	1.352	1.352	1.352	1.352	1.352	1.352	1.352
D-upper	1.489	1.489	1.489	1.489	1.489	1.489	1.489	1.489
Significant autocorrelation	yes	yes	no	yes	no	yes	yes	no
Mann-Kendall MK statistic	−407	339	−195	219	−167	181	97.000	303
Standard Error	56.051	56.051	56.051	56.051	56.051	56.051	56.051	56.051
Z-stat	−7.243	6.030	−3.461	3.889	−2.962	3.211	1.713	5.388
P-value	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.05	<0.01
Trend	Negative	Positive	Negative	Positive	Negative	Positive	Positive	Positive
Sens slope s statistic	−0.948	0.440	−0.729	0.233	−1.770	0.512	0.284	0.211
S-lower	−1.080	0.368	−1.042	0.149	−2.591	0.262	−0.041	0.158
S-upper	−0.863	0.517	−0.423	0.341	−0.612	0.807	0.542	0.277