Table 4 Linear mixed-effects models... | Emerald Publishing

Table 4

Linear mixed-effects models predicting human pick time of products located in same aisle (different stopping node)

	Dependent variable: Human pick time in same aisle (Tukey transformation, $λ = 0.325$ ⁠)
	Scenarios model (M2a,i)		Behavioral model (M2b,i)		Interaction model (M2c,i)
Independent variable	Estimate	Std. error	Estimate	Std. error	Estimate	Std. error
Constant	1.497	0.049	1.806	0.152	1.976	0.170
Base performance: Medium	−0.152	0.041	−0.170	0.040	−0.170	0.040
Base performance: High	−0.269	0.040	−0.274	0.039	−0.274	0.039
Order picking experience	0.005	0.003	0.005	0.003	0.005	0.003
Scenario sequence	−0.015	0.033	−0.007	0.032	−0.007	0.032
Progress (square root of pick timestamp)	−0.006	0.001	−0.006	0.001	−0.006	0.001
Scenario: Human leading	−0.084	0.017	−0.084	0.017	−0.409	0.145
Prevention focus			−0.072	0.034	−0.112	0.038
(Scenario: Human leading) * (Prevention focus)					0.076	0.034
Restricted maximum likelihood criterion	3161.6		3162.0		3161.9
Number of subjects	60		60		60
Number of stopping node combinations	26		26		26
Number of picks	2,720		2,720		2,720

	Dependent variable: Human pick time in same aisle (Tukey transformation, $λ = 0.325$ )
	Scenarios model (M2a,i)		Behavioral model (M2b,i)		Interaction model (M2c,i)
Independent variable	Estimate	Std. error	Estimate	Std. error	Estimate	Std. error
Constant	1.497	0.049	1.806	0.152	1.976	0.170
Base performance: Medium	−0.152	0.041	−0.170	0.040	−0.170	0.040
Base performance: High	−0.269	0.040	−0.274	0.039	−0.274	0.039
Order picking experience	0.005	0.003	0.005	0.003	0.005	0.003
Scenario sequence	−0.015	0.033	−0.007	0.032	−0.007	0.032
Progress (square root of pick timestamp)	−0.006	0.001	−0.006	0.001	−0.006	0.001
Scenario: Human leading	−0.084	0.017	−0.084	0.017	−0.409	0.145
Prevention focus			−0.072	0.034	−0.112	0.038
(Scenario: Human leading) * (Prevention focus)					0.076	0.034
Restricted maximum likelihood criterion	3161.6		3162.0		3161.9
Number of subjects	60		60		60
Number of stopping node combinations	26		26		26
Number of picks	2,720		2,720		2,720

Note(s): Italic type = significant at p < 0.05