Victoria Symptom Validity Test
The Victoria Symptom Validity Test (VSVT) is a two-alternative forced choice, computer-administered assessment measure used to determine the validity of reported cognitive impairment (Slick et al. 1997). Interpretation of VSVT performance is based on binomial probability theory, which considers the probability of a particular response occurring by chance alone.
The VSVT is comprised of 48 items presented in three separate blocks (16 items per block). Stimuli (a five-digit number) in each block are first presented during a study trial, followed by a retention trial in which the examinee views a blank screen for a brief period, increasing from 5 to 15 s from the first to the third block. Next, examinees view two sets of stimuli presented on either side of a computer screen – a five-digit number from the study trial and a foil – and are asked to choose the item shown during the study trial. Presentation of the target stimuli and foil are counterbalanced and pseudo-randomized. In order to...
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