Related Experiment Videos
Construct validity of Hopkins Verbal Learning Test-Revised component process measures in an HIV-1 sample
Steven Paul Woods1, J Cobb Scott, Matthew S Dawson
1HIV Neurobehavioral Research Center, Department of Psychiatry, 0603-H, University of California, San Diego, CA 92103-2005, USA. spwoods@ucsd.edu
Summary
HIV-1 infection impairs verbal memory, affecting executive functions. New analysis of the Hopkins Verbal Learning Test-Revised (HVLT-R) confirms its component process measures, like Semantic Clustering, are valid indicators of HIV-associated neurocognitive disorders.
Area of Science:
- Neuroscience
- Psychology
- Infectious Disease
Background:
- HIV-1 infection commonly causes executive dyscontrol affecting verbal learning and memory.
- Standard Hopkins Verbal Learning Test-Revised (HVLT-R) indexes are sensitive to HIV-associated neurocognitive disorders.
- Qualitative HVLT-R component process measures show emerging validity, but their use in HIV-1 populations requires further examination.
Purpose of the Study:
- To examine the construct validity of HVLT-R component process indices in individuals with HIV-1.
- To compare performance on HVLT-R component process measures between HIV-1 positive and seronegative individuals.
- To assess the convergent and divergent validity of these measures within the HIV-1 sample.
Main Methods:
- A sample of 42 persons with HIV-1 and 29 demographically similar seronegative participants were studied.
- Construct validity of HVLT-R component process indices was examined.
- Performance was compared between groups, and convergent/divergent validity was assessed against standard clinical tests.
Main Results:
- The HIV-1 group performed significantly worse on Total Recall, Delayed Recall, Semantic Clustering, and the Retrieval Index.
- No significant differences were found in Serial Clustering, Pair Frequency, Learning, Repetitions, Semantic False Positive Recognition Errors, or Recognition Discrimination Index.
- HVLT-R component process measures showed evidence of convergent and divergent validity in the HIV-1 sample.
Conclusions:
- Findings support the construct validity of HVLT-R component process measures.
- HIV-1 infection is associated with deficits in the executive control of verbal episodic memory encoding and retrieval.
- These measures offer valuable insights into neurocognitive impairments in HIV-1.