Publications by authors named "Palak G Singh"
Embedded performance validity tests (PVTs) are key components of neuropsychological evaluations. However, most are memory-based and may be less useful in the assessment of attention-deficit/hyperactivity disorder (ADHD). Four non-memory-based validity indices derived from processing speed and executive functioning measures commonly included in ADHD evaluations, namely Verbal Fluency (VF) and the Trail Making Test (TMT), were cross-validated using the Rey 15-Item Test (RFIT) Recall and Recall/Recognition as memory-based comparison measures.
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- The study assessed how reliable traditional Medical Symptom Validity Test (MSVT) indicators are for identifying valid or invalid test performances in patients with varying levels of memory impairment.
- It involved 180 adult outpatients categorized into valid and invalid groups based on four different performance validity tests, with their learning and recall deficits evaluated using specific memory tests.
- Results indicated that while traditional MSVT indicators performed well, they needed adjustments at higher levels of memory impairment, whereas a new scoring method, the mean performance index, demonstrated stronger reliability across different impairment levels.