Further aspects of the asymmetry of the stepping test.

The test-retest reliability of the asymmetry of the Unterberger stepping test was obtained over a 3-mo. period. This stepping test is a test examining the labyrinthine deviation when testing the lower extremities. Also, self-report items were validated against individual measures of the stepping test. The investigations show high reliability of the asymmetry of the stepping test. The data indicate further that a questionnaire is a valid method for the assessment of the asymmetry of the stepping test.