Table 4:
Results of Principal Axis Factoring on VOR Cancellation %, SVV Variance, SOT, and FGA in people with MS. Reproduced correlations are presented as Reproduced Correlation Coefficient (Residual Correlation Coefficient).
| Principal Axis Factoring Results | ||||
|---|---|---|---|---|
|
| ||||
| Communalities | Extraction | |||
| VOR Cancel % | 0.44 | |||
| SVV Variance | 0.60 | |||
| SOT Composite | 0.45 | |||
| FGA Composite | 0.71 | |||
| | ||||
| | ||||
| Extraction Sums of Squared | ||||
| Factors | Loadings | |||
| Eigenvalue | % of Variance | |||
| Factor 1 (“Central Vestibular Integration”) | 2.2 | 54.90% | ||
| | ||||
| | ||||
| Factor Loadings | Factor 1 | |||
| VOR Cancel % | 0.66* | |||
| SVV Variance | 0.78 | |||
| SOT Composite | 0.67* | |||
| FGA Composite | 0.84* | |||
| | ||||
| | ||||
| Reproduced Correlations | ||||
| VOR Cancellation % | SVV Variance | SOT Composite | FGA Composite | |
| VOR Cancel % | -- | |||
| SVV Variance | 0.51 (0.01) | -- | ||
| SOT Composite | 0.44 (0.01) | 0.52 (−0.02) | -- | |
| FGA Composite | 0.56 (−0.02) | 0.51 (0.01) | 0.56 (0.01) | -- |
Note. VOR=Vestibular Ocular Reflex, SVV=Subjective Visual Vertical, SOT=Sensory Organization Test, FGA=Functional Gait Assessment.
*
Reflection of these variables prior to factor analysis means that the true relationship of these variables with the factor is negative, not positive.