The present study sought to establish normative and discriminant validity data for Rey's Auditory Verbal Learning Test [Rey, A. (1964). L 'examen clinique en psychologie [Clinical tests in psychology]. Paris: Presses Universitaires de France; Schmidt, M. (1996). Rey auditory verbal learning test: A handbook. Los Angeles, CA: Western Psychological Services] using newly adapted learning lists for the Greek adult population. Applying the procedure suggested by Geffen et al. [Geffen, G., Moar, K. J., O'Hanlon, A. P., Clark, C. R., & Geffen, L. N. (1990). Performance measures of 16-86-year-old males and females on the auditory verbal learning test. The Clinical Neuropsychologist, 4, 45-63] we administered the test to 205 healthy participants, aged 18-78 years and two adult patient groups (long-term cannabis users and HIV symptomatic patients). Stepwise linear regression analyses showed that the variables age, education and gender contributed significantly to most trials of the RAVLT. Performance decreased in an age-dependent manner from young adulthood. Women, young adults and higher educated participants outperformed men, older adults and less educated individuals. The test appears to discriminate adequately between the performance of long-term heavy cannabis users and HIV seropositive symptomatic patients and matched healthy controls, as both patient groups performed more poorly than their respective control group. Normative data stratified by age, gender and education for the Greek adult population is presented for use in research and clinical settings.
Rapidly expanding interest in neuropsychological assessment in Greece has made the development of appropriate culture-specific normative data for core neuropsychological measures essential. In the present study, we sought to establish normative, test-retest reliability and discriminant validity data for the Ruff 2 and 7 Selective Attention Test in the Greek adult population. We administered the test using standard procedures to 218 healthy Greek adults (95 men), aged 17-80 years and two adult patient groups (26 detoxified opiate addicts and 23 HIV seropositive individuals). Using linear regression analyses, we examined the contribution of age, education and gender on Ruff 2 and 7 performance. We further examined test-retest reliability by administering the test on two occasions to 40 healthy adults, with an intersession interval of 12-14 weeks. The regression analyses revealed that age and education, but not gender, contributed significantly to participants performance, with older age and lower education contributing to poorer performance on Speed scores, but only education contributing moderately to Automatic Detection Accuracy scores. Test-retest reliability was very high (.94-.98) for Speed scores, and adequate to high (.73-.89) for Accuracy scores. Younger adults also demonstrated larger practice effects compared to older participants. The test appears to discriminate adequately between the performance of detoxified opiate addicts and HIV seropositive patients and matched healthy controls, as both patient groups performed more poorly than their respective control group. We present normative data for Speed and Accuracy scores stratified by age and education for the Greek adult population.
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