Table 1.
Kendall’s Tau-b (2-tailed) correlations between the measures of goal-directed task performance and the measures of everyday activity. NB. The calibration of the eye tracker failed for 1 participant, and the “Unilateral Ratio” for 2 participants was undefined (no unilateral prosthesis activity); these participants were excluded from the relevant correlations (n = number of values included in correlation)
| Success Rate | Task Duration | Delay Plateau Length | Reach Plateau Length | Acceleration Variability | Reach-to-grasp %Hand | Reach-to-grasp %GCA | Reach-to-grasp %LCA/Tube | Transport %Hand/GCA | Transport %LCA/Tube | |
|---|---|---|---|---|---|---|---|---|---|---|
| Median %Reliance Dominant | τ = 0.071 p = 0.681 n = 20 | τ = 0.105 p = 0.516 n = 20 | τ = 0.158 p = 0.330 n = 20 | τ = −0.074 p = 0.650 n = 20 | τ = −0.053 p = 0.746 n = 20 | τ = 0.030 p = 0.860 n = 19 | τ = 0.076 p = 0.649 n = 19 | τ = −0.041 p = 0.807 n = 19 | τ = −0.129 p = 0.441 n = 19 | τ = 0.181 p = 0.278 n = 19 |
| Unilateral Ratio | τ = 0.200 p = 0.272 n = 18 | τ = −0.150 p = 0.384 n = 18 | τ = 0.020 p = 0.910 n = 18 | τ = 0.020 p = 0.910 n = 18 | τ = −0.255 p = 0.140 n = 18 | τ = −0.260 p = 0.155 n = 17 | τ = −0.015 p = 0.934 n = 17 | τ = 0.309 p = 0.084 n = 17 | τ = −0.199 p = 0.266 n = 17 | τ = 0.088 p = 0.621 n = 17 |
| Prosthesis Wear Time | τ = 0.047 p = 0.784 n = 20 | τ = 0.000 p = 1.000 n = 20 | τ = 0.053 p = 0.746 n = 20 | τ = −0.158 p = 0.330 n = 20 | τ = −0.011 p = 0.948 n = 20 | τ = 0.066 p = 0.697 n = 19 | τ = 0.251 p = 0.132 n = 19 | τ = −0.263 p = 0.115 n = 19 | τ = −0.117 p = 0.484 n = 19 | τ = 0.287 p = 0.086 n = 19 |
| Unilateral Dominant | τ = 0.083 p = 0.632 n = 20 | τ = 0.116 p = 0.475 n = 20 | τ = 0.126 p = 0.436 n = 20 | τ = −0.232 p = 0.153 n = 20 | τ = 0.105 p = 0.516 n = 20 | τ = −0.042 p = 0.805 n = 19 | τ = 0.088 p = 0.600 n = 19 | τ = −0.053 p = 0.753 n = 19 | τ = −0.235 p = 0.161 n = 19 | τ = 0.263 p = 0.115 n = 19 |
| Unilateral Non-dominant | τ = −0.191 p = 0.273 n = 20 | τ = 0.281 p = 0.085 n = 20 | τ = 0.143 p = 0.380 n = 20 | τ = −0.207 p = 0.205 n = 20 | τ = 0.218 p = 0.183 n = 20 | τ = 0.128 p = 0.457 n = 19 | τ = 0.130 p = 0.441 n = 19 | τ = −0.201 p = 0.233 n = 19 | τ = −0.065 p = 0.700 n = 19 | τ = 0.118 p = 0.483 n = 19 |
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