Linear mixed-effects models predicting collaborative productivity in human–robot collaborative order picking
| Dependent variable: Collaborative productivity (correct total order lines picked in 20 min) | ||||||
|---|---|---|---|---|---|---|
| Scenarios model (M1a) | Behavioral model (M1b) | Interaction model (M1c) | ||||
| Independent variable | Estimate | Std. error | Estimate | Std. error | Estimate | Std. error |
| Constant | 60.213 | 1.048 | 54.201 | 4.199 | 50.895 | 4.763 |
| Base performance: Medium | 4.472 | 1.105 | 4.828 | 1.120 | 4.841 | 1.119 |
| Base performance: High | 7.935 | 1.085 | 8.052 | 1.077 | 8.066 | 1.076 |
| Order picking experience | −0.117 | 0.086 | −0.126 | 0.085 | −0.125 | 0.085 |
| Order set #2 | −2.301 | 0.668 | −2.229 | 0.669 | −2.080 | 0.671 |
| Order set #3 | −3.766 | 0.654 | −3.660 | 0.657 | −3.620 | 0.652 |
| Scenario sequence | 1.598 | 0.905 | 1.444 | 0.902 | 1.441 | 0.901 |
| Scenario: Human leading | 5.074 | 0.490 | 5.074 | 0.490 | 11.453 | 4.381 |
| Prevention focus | 1.388 | 0.939 | 2.150 | 1.073 | ||
| (Scenario: Human leading) * (Prevention focus) | −1.504 | 1.026 | ||||
| Restricted maximum likelihood criterion | 634.0 | 630.2 | 622.8 | |||
| Number of subjects | 60 | 60 | 60 | |||
| Number of rounds | 120 | 120 | 120 | |||
| Dependent variable: Collaborative productivity (correct total order lines picked in 20 min) | ||||||
|---|---|---|---|---|---|---|
| Scenarios model (M1a) | Behavioral model (M1b) | Interaction model (M1c) | ||||
| Independent variable | Estimate | Std. error | Estimate | Std. error | Estimate | Std. error |
| Constant | 1.048 | 4.199 | 4.763 | |||
| Base performance: Medium | 1.105 | 1.120 | 1.119 | |||
| Base performance: High | 1.085 | 1.077 | 1.076 | |||
| Order picking experience | −0.117 | 0.086 | −0.126 | 0.085 | −0.125 | 0.085 |
| Order set #2 | 0.668 | 0.669 | 0.671 | |||
| Order set #3 | 0.654 | 0.657 | 0.652 | |||
| Scenario sequence | 1.598 | 0.905 | 1.444 | 0.902 | 1.441 | 0.901 |
| Scenario: | 0.490 | 0.490 | 4.381 | |||
| Prevention focus | 1.388 | 0.939 | 1.073 | |||
| (Scenario | −1.504 | 1.026 | ||||
| Restricted maximum likelihood criterion | 630.2 | 622.8 | ||||
| Number of subjects | 60 | 60 | 60 | |||
| Number of rounds | 120 | 120 | 120 | |||
Note(s): Italic type = significant at p < 0.05
Sharing content requires targeting cookies to be enabled. Please update your cookie preferences to use this feature.