Michelson PL, McCaslin DL, Jacobson GP, Petrak M, English L, Hatton K. Assessment of Subjective Visual Vertical (SVV) Using the "Bucket Test" and the Virtual SVV System. American journal of audiology. 2018 Jun 25. 1-11. PMID: 29946701 [PubMed]
The purpose of this study was to describe the variability and test-retest reliability of a commercially available subjective visual vertical (SVV) system known as Virtual SVV (Interacoustics). In addition, the study aimed to compare the reliability of the Virtual system with a previously established bucket test of SVV.