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Author: Admin | 2025-04-28
Value for the variable of interest will fall within the specified range of ICC values at the 95% CI.33 The SEM values were ±6.38% for Biodex directional control and ±12.03 seconds for test duration. Similar results were calculated for outcome measures from the NeuroCom testing, with high test-retest reliability observed for endpoint excursion (ICC [2,k] = 0.88, 95% CI = 0.73, 0.94), high reliability observed for movement velocity (ICC [2,k] = 0.80, 95% CI = 0.59, 0.91), and moderate reliability observed for directional control (ICC [2,k] = 0.69, 95% CI = 0.40, 0.86). The SEM values were ±3.01% for endpoint excursion, 0.70°/s for movement velocity, and ±2.79% for directional control. The data from all LOS testing are summarized in Table 2, with the reliability ICC values and probability values provided. DISCUSSION The comparison of the computerized posturography devices used in this study is quite complex. Theoretically, LOS tests that are based on the same dynamic postural stability definition should have outcome variables that correlate highly with one another to demonstrate construct and concurrent validity of postural stability assessment. The interclass correlation process used here helps us to assess the concurrent validity of these devices. This type of validity provides evidence in the area of criterion validity, often referenced as the criterion or gold standard of a test. The absence of a criterion standard against which to measure dynamic postural stability creates a unique structure for validating these tests. We acknowledge different points of view on this process but believe that
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