(a) P matrix, (b) Z matrix and (c) scaling resulting from the application of the proposed procedure to the case study
| S1 | S2 | S3 | S4 | S5 | S6 | S7 | S8 | S∅ | S△ | S○ | S● | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (a) P matrix | ||||||||||||
| S1 | 0.500 | 0.195 | 0.250 | 0.535 | 0.140 | 0.305 | 0.125 | 0.415 | 0.570 | 0.140 | 0.140 | 0.070 |
| S2 | 0.805 | 0.500 | 0.490 | 0.805 | 0.475 | 0.375 | 0.220 | 0.620 | 0.675 | 0.555 | 0.275 | 0.050 |
| S3 | 0.750 | 0.490 | 0.500 | 0.250 | 0.514 | 0.615 | 0.360 | 0.290 | 0.180 | 0.760 | 0.810 | 0.070 |
| S4 | 0.430 | 0.195 | 0.250 | 0.500 | 0.070 | 0.235 | 0.055 | 0.250 | 0.570 | 0.140 | 0.070 | 0.000 |
| S5 | 0.860 | 0.525 | 0.514 | 0.930 | 0.500 | 0.400 | 0.475 | 0.890 | 1.000 | 0.945 | 0.445 | 0.000 |
| S6 | 0.695 | 0.625 | 0.615 | 0.765 | 0.600 | 0.500 | 0.585 | 0.780 | 0.945 | 0.670 | 0.600 | 0.265 |
| S7 | 0.875 | 0.780 | 0.360 | 0.945 | 0.525 | 0.415 | 0.500 | 0.790 | 0.945 | 0.790 | 0.525 | 0.180 |
| S8 | 0.585 | 0.380 | 0.290 | 0.750 | 0.110 | 0.220 | 0.210 | 0.500 | 0.655 | 0.210 | 0.110 | 0.055 |
| S∅ | 0.430 | 0.325 | 0.180 | 0.543 | 0.000 | 0.055 | 0.055 | 0.345 | 0.500 | 0.000 | 0.000 | 0.000 |
| S△ | 0.860 | 0.455 | 0.765 | 0.860 | 0.055 | 0.330 | 0.210 | 0.790 | 1.000 | 0.500 | 0.000 | 0.000 |
| S○ | 0.860 | 0.695 | 0.810 | 0.930 | 0.555 | 0.400 | 0.475 | 0.890 | 1.000 | 1.000 | 0.500 | 0.000 |
| S● | 0.930 | 0.950 | 0.930 | 1.000 | 1.000 | 0.735 | 0.820 | 0.945 | 1.000 | 1.000 | 1.000 | 0.500 |
| (b) Z matrix | ||||||||||||
| S1 | 0.000 | 0.859 | 0.674 | −0.176 | 1.080 | 0.510 | 1.150 | 0.125 | −0.176 | 1.080 | 1.080 | 1.476 |
| S2 | −0.859 | 0.000 | 0.025 | −0.859 | 0.062 | −0.318 | 0.772 | −0.305 | −0.455 | −0.125 | 0.597 | 1.281 |
| S3 | −0.675 | −0.025 | 0.000 | −0.674 | 0.035 | 0.292 | −0.358 | −0.553 | −0.915 | −0.214 | −0.075 | −0.974 |
| S4 | 0.176 | 0.859 | 0.674 | 0.000 | 1.475 | 0.722 | 1.598 | 0.675 | −0.176 | 1.080 | 1.476 | 3.000 |
| S5 | −1.080 | −0.062 | −0.035 | −1.475 | 0.000 | 0.253 | 0.063 | −1.227 | −3.000 | −1.598 | 0.138 | 3.000 |
| S6 | −0.510 | −0.318 | −0.292 | −0.722 | −0.253 | 0.000 | −0.215 | −0.772 | −1.598 | −0.439 | −0.253 | 0.628 |
| S7 | −1.150 | −0.772 | −0.358 | −1.598 | −0.063 | 0.215 | 0.000 | −0.806 | −1.598 | −0.806 | −0.063 | 0.915 |
| S8 | −0.214 | 0.305 | 0.553 | −0.674 | 1.227 | 0.772 | 0.806 | 0.000 | −0.399 | 0.806 | 1.227 | 1.598 |
| S∅ | 0.176 | 0.453 | 0.915 | 0.176 | −3.000 | 1.598 | 1.598 | 0.399 | 0.000 | 3.000 | 3.000 | 3.000 |
| S△ | −1.080 | 0.125 | 0.214 | −1.080 | 1.598 | 0.439 | 0.806 | −0.806 | −3.000 | 0.000 | 3.000 | 3.000 |
| S○ | −1.080 | −0.597 | 0.074 | −1.476 | −0.138 | 0.253 | −0.063 | −1.226 | −3.000 | −3.000 | 0.000 | 3.000 |
| S● | −1.476 | −1.281 | −0.874 | −3.000 | −3.000 | −0.628 | −0.915 | −1.599 | −3.000 | −3.000 | −3.000 | 0.000 |
| (c) Scaling | ||||||||||||
| Σk | −7.773 | −0.453 | 2.23 | −11.56 | −0.977 | 4.108 | 5.242 | −6.095 | −17.317 | −3.216 | 7.127 | 19.924 |
| xk | −0.647 | −0.037 | 0.185 | −0.963 | −0.081 | 0.342 | 0.437 | −0.508 | −1.443 | −0.268 | 0.594 | 1.667 |
| yk | 2.56 | 4.53 | 5.25 | 1.55 | 4.39 | 5.75 | 6.06 | 3.01 | 0 | 3.78 | 6.56 | 10 |
| 0.500 | 0.195 | 0.250 | 0.535 | 0.140 | 0.305 | 0.125 | 0.415 | 0.570 | 0.140 | 0.140 | 0.070 | |
| 0.805 | 0.500 | 0.490 | 0.805 | 0.475 | 0.375 | 0.220 | 0.620 | 0.675 | 0.555 | 0.275 | 0.050 | |
| 0.750 | 0.490 | 0.500 | 0.250 | 0.514 | 0.615 | 0.360 | 0.290 | 0.180 | 0.760 | 0.810 | 0.070 | |
| 0.430 | 0.195 | 0.250 | 0.500 | 0.070 | 0.235 | 0.055 | 0.250 | 0.570 | 0.140 | 0.070 | 0.000 | |
| 0.860 | 0.525 | 0.514 | 0.930 | 0.500 | 0.400 | 0.475 | 0.890 | 1.000 | 0.945 | 0.445 | 0.000 | |
| 0.695 | 0.625 | 0.615 | 0.765 | 0.600 | 0.500 | 0.585 | 0.780 | 0.945 | 0.670 | 0.600 | 0.265 | |
| 0.875 | 0.780 | 0.360 | 0.945 | 0.525 | 0.415 | 0.500 | 0.790 | 0.945 | 0.790 | 0.525 | 0.180 | |
| 0.585 | 0.380 | 0.290 | 0.750 | 0.110 | 0.220 | 0.210 | 0.500 | 0.655 | 0.210 | 0.110 | 0.055 | |
| 0.430 | 0.325 | 0.180 | 0.543 | 0.000 | 0.055 | 0.055 | 0.345 | 0.500 | 0.000 | 0.000 | 0.000 | |
| 0.860 | 0.455 | 0.765 | 0.860 | 0.055 | 0.330 | 0.210 | 0.790 | 1.000 | 0.500 | 0.000 | 0.000 | |
| 0.860 | 0.695 | 0.810 | 0.930 | 0.555 | 0.400 | 0.475 | 0.890 | 1.000 | 1.000 | 0.500 | 0.000 | |
| 0.930 | 0.950 | 0.930 | 1.000 | 1.000 | 0.735 | 0.820 | 0.945 | 1.000 | 1.000 | 1.000 | 0.500 | |
| 0.000 | 0.859 | 0.674 | −0.176 | 1.080 | 0.510 | 1.150 | 0.125 | −0.176 | 1.080 | 1.080 | 1.476 | |
| −0.859 | 0.000 | 0.025 | −0.859 | 0.062 | −0.318 | 0.772 | −0.305 | −0.455 | −0.125 | 0.597 | 1.281 | |
| −0.675 | −0.025 | 0.000 | −0.674 | 0.035 | 0.292 | −0.358 | −0.553 | −0.915 | −0.214 | −0.075 | −0.974 | |
| 0.176 | 0.859 | 0.674 | 0.000 | 1.475 | 0.722 | 1.598 | 0.675 | −0.176 | 1.080 | 1.476 | 3.000 | |
| −1.080 | −0.062 | −0.035 | −1.475 | 0.000 | 0.253 | 0.063 | −1.227 | −3.000 | −1.598 | 0.138 | 3.000 | |
| −0.510 | −0.318 | −0.292 | −0.722 | −0.253 | 0.000 | −0.215 | −0.772 | −1.598 | −0.439 | −0.253 | 0.628 | |
| −1.150 | −0.772 | −0.358 | −1.598 | −0.063 | 0.215 | 0.000 | −0.806 | −1.598 | −0.806 | −0.063 | 0.915 | |
| −0.214 | 0.305 | 0.553 | −0.674 | 1.227 | 0.772 | 0.806 | 0.000 | −0.399 | 0.806 | 1.227 | 1.598 | |
| 0.176 | 0.453 | 0.915 | 0.176 | −3.000 | 1.598 | 1.598 | 0.399 | 0.000 | 3.000 | 3.000 | 3.000 | |
| −1.080 | 0.125 | 0.214 | −1.080 | 1.598 | 0.439 | 0.806 | −0.806 | −3.000 | 0.000 | 3.000 | 3.000 | |
| −1.080 | −0.597 | 0.074 | −1.476 | −0.138 | 0.253 | −0.063 | −1.226 | −3.000 | −3.000 | 0.000 | 3.000 | |
| −1.476 | −1.281 | −0.874 | −3.000 | −3.000 | −0.628 | −0.915 | −1.599 | −3.000 | −3.000 | −3.000 | 0.000 | |
| Σ | −7.773 | −0.453 | 2.23 | −11.56 | −0.977 | 4.108 | 5.242 | −6.095 | −17.317 | −3.216 | 7.127 | 19.924 |
| −0.647 | −0.037 | 0.185 | −0.963 | −0.081 | 0.342 | 0.437 | −0.508 | −1.443 | −0.268 | 0.594 | 1.667 | |
| 2.56 | 4.53 | 5.25 | 1.55 | 4.39 | 5.75 | 6.06 | 3.01 | 0 | 3.78 | 6.56 | 10 | |
Σk is the summation of the values reported in the kth column of the Z matrix; the xk values concern the interval scaling resulting from the Thurstone’s LCJ; the yk values concern the ratio scaling downstream of the anchoring in equation (4)
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