Table 4.
Items included in the final model in order of decreasing difficulty.
| Item (level)a | Item parameter | Fit statistics | ||||
| Measure (logits) | Model SE | Infit mean square | Outfit mean square | Point-biserial correlation | ||
| Line Roller: sidesteps bilateral (10) | 4.62 | 0.53 | 0.42 | 0.53 | 0.72 | |
| Line Roller: sidesteps unilateral (8) | 4.55 | 0.50 | 0.50 | 0.53 | 0.34 | |
| Car Racer (8) | 4.10 | 0.15 | 0.61 | 0.71 | 0.77 | |
| Car Racer (10) | 3.98 | 0.23 | 0.49 | 0.56 | 0.78 | |
| Car Racer (10)b | 3.86 | 0.13 | 0.56 | 1.56 | 0.74 | |
| Line Roller: sidesteps bilateral (6) | 3.10 | 0.31 | 0.45 | 0.50 | 0.85 | |
| Car Racer (8)b | 2.81 | 0.09 | 0.63 | 0.87 | 0.74 | |
| Line Roller: sidesteps unilateral (6) | 2.74 | 0.29 | 0.32 | 0.33 | 0.92 | |
| Line Roller: sidesteps unilateral (4) | 2.72 | 0.23 | 0.70 | 0.70 | 0.68 | |
| Line Roller: sidesteps bilateral (4) | 2.64 | 0.25 | 0.78 | 0.86 | 0.65 | |
| Berg Balance Scale item 14 | 2.49 | 0.09 | 1.28 | 1.31 | 0.72 | |
| Line Roller: sidesteps unilateral (2) | 2.29 | 0.25 | 0.90 | 0.98 | 0.58 | |
| Berg Balance Scale item 12 | 1.93 | 0.08 | 1.37 | 1.17 | 0.78 | |
| Line Roller: sidesteps bilateral (2) | 1.93 | 0.31 | 0.56 | 0.58 | 0.49 | |
| Cross the Road: free steps (10) | 1.54 | 0.48 | 0.44 | 0.46 | 0.94 | |
| Veggie Guard (8) | 1.53 | 0.36 | 0.48 | 0.50 | 0.69 | |
| Berg Balance Scale item 13 | 1.47 | 0.08 | 1.04 | 1.03 | 0.78 | |
| Berg Balance Scale item 11 | 1.32 | 0.08 | 0.90 | 0.87 | 0.83 | |
| Car Racer (4) | 1.10 | 0.17 | 0.79 | 0.79 | 0.66 | |
| Car Racer (6) | 0.78 | 0.14 | 1.00 | 1.05 | 0.63 | |
| Cross the Road: free steps (6) | 0.69 | 0.54 | 0.97 | 0.90 | 0.72 | |
| Skiliner (5) | 0.62 | 0.17 | 0.83 | 1.07 | 0.66 | |
| Mine Cart (8) | 0.50 | 0.23 | 1.08 | 0.99 | 0.62 | |
| Cross the Road: free steps (8) | 0.38 | 0.63 | 0.33 | 0.24 | 0.88 | |
| Skiliner (4) | 0.37 | 0.14 | 0.81 | 0.96 | 0.60 | |
| Mine Cart (10) | 0.20 | 0.38 | 0.79 | 1.21 | 0.44 | |
| Skiliner (3) | 0.19 | 0.19 | 0.91 | 0.80 | 0.66 | |
| Berg Balance Scale item 7 | 0.07 | 0.09 | 1.18 | 0.97 | 0.80 | |
| Car Racer (4)b | 0.02 | 0.11 | 1.11 | 1.34 | 0.65 | |
| Car Racer (6)b | –0.14 | 0.09 | 0.98 | 0.95 | 0.73 | |
| Cross the Road: forward-backward step (6) | –0.19 | 0.28 | 1.53 | 1.20 | 0.68 | |
| Berg Balance Scale item 8 | –0.22 | 0.10 | 1.07 | 1.43 | 0.74 | |
| Skiliner (2) | –0.33 | 0.25 | 0.76 | 0.70 | 0.72 | |
| Mine Cart (10)b | –0.34 | 0.13 | 1.17 | 1.20 | 0.56 | |
| Cross the Road: forward-backward step (4) | –0.35 | 0.35 | 0.85 | 0.83 | 0.66 | |
| Berg Balance Scale item 10 | –0.59 | 0.10 | 0.89 | 0.83 | 0.77 | |
| Berg Balance Scale item 9 | –0.73 | 0.11 | 1.12 | 0.74 | 0.77 | |
| Airplane (2) | –0.94 | 0.56 | 1.83 | 1.34 | 0.59 | |
| Cross the Road: forward-backward step (8) | –0.95 | 0.39 | 1.16 | 0.76 | 0.47 | |
| Mine Cart (2) | –1.17 | 0.54 | 0.71 | 0.51 | 0.71 | |
| Mine Cart (6) | –1.27 | 0.27 | 0.76 | 0.75 | 0.51 | |
| Berg Balance Scale item 6 | –1.43 | 0.12 | 0.87 | 0.78 | 0.73 | |
| Mine Cart (8)b | –1.45 | 0.15 | 1.33 | 1.17 | 0.58 | |
| Berg Balance Scale item 5 | –1.92 | 0.13 | 1.19 | 0.75 | 0.70 | |
| Cross the Road: forward-backward step (2) | –1.94 | 0.65 | 1.18 | 1.08 | 0.42 | |
| Car Racer (2) | –1.98 | 0.54 | 0.97 | 0.75 | 0.61 | |
| Skiliner (1) | –2.06 | 1.06 | 1.08 | 0.99 | 0.14 | |
| Airplane (10) | –2.07 | 0.37 | 1.12 | 1.36 | 0.28 | |
| Mine Cart (4) | –2.17 | 0.41 | 0.68 | 0.27 | 0.70 | |
| Berg Balance Scale item 1 | –2.19 | 0.14 | 0.86 | 0.77 | 0.70 | |
| Berg Balance Scale item 4 | –2.29 | 0.14 | 1.05 | 0.68 | 0.66 | |
| Mine Cart (4)b | –2.45 | 0.17 | 1.27 | 1.43 | 0.54 | |
| Airplane (10)b | –2.61 | 0.18 | 1.37 | 1.25 | 0.34 | |
| Berg Balance Scale item 2 | –2.68 | 0.16 | 1.03 | 0.33 | 0.64 | |
| Airplane (4)b | –2.70 | 0.24 | 1.47 | 1.13 | 0.59 | |
| Mine Cart (6)b | –2.80 | 0.18 | 1.28 | 1.24 | 0.47 | |
| Airplane (8)b | –3.33 | 0.22 | 1.47 | 1.18 | 0.35 | |
| Airplane (6) | –3.38 | 0.62 | 0.80 | 0.51 | 0.39 | |
| Airplane (2)b | –3.87 | 0.45 | 1.09 | 0.49 | 0.63 | |
| Airplane (6)b | –4.03 | 0.25 | 1.31 | 0.80 | 0.46 | |
| Berg Balance Scale item 3 | –8.97 | 1.83 | mmc | mm | 0.00 | |
aExergames are described in Figure 2.
bThese exercises were performed in a seated position.
cmm: minimum measure.