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Multivariate Base Rates of Low Scores on Tests of Learning and Memory Among Latino Adult Populations

Published online by Cambridge University Press:  27 May 2019

Diego Rivera Open the ORCID record for Diego Rivera [Opens in a new window] ,
Laiene Olabarrieta-Landa ,
Brian L. Brooks ,
Melissa M. Ertl ,
Itziar Benito-Sánchez ,
Maria Cristina Quijano ,
Walter Rodriguez-Irizarry ,
Adriana Aguayo Arelis ,
Yaneth Rodríguez-Agudelo  and
Juan Carlos Arango-Lasprilla
Diego Rivera
Affiliation:
Biocruces Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, 48903, Spain
Laiene Olabarrieta-Landa
Affiliation:
Biocruces Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, 48903, Spain
Brian L. Brooks
Affiliation:
Neuropsychology Service, Alberta Children’s Hospital, Calgary, Alberta, T3B 6A8, Canada Departments of Pediatrics, Clinical Neurosciences, and Psychology, University of Calgary, Calgary, Alberta, T2N 1N4, Canada Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
Melissa M. Ertl
Affiliation:
University at Albany, State University of New York, Albany, New York, 12222, USA
Itziar Benito-Sánchez
Affiliation:
Biocruces Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, 48903, Spain Department of Cell Biology and Histology, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, 48940, Spain
Maria Cristina Quijano
Affiliation:
Department of Social Science, Pontificia Universidad Javeriana, Cali, Valle del Cauca, 760001, Colombia
Walter Rodriguez-Irizarry
Affiliation:
Department of Social Science, Universidad Interamericana de Puerto Rico, Recinto de San Germán, San Germán, Puerto Rico, 00683, USA
Adriana Aguayo Arelis
Affiliation:
Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, 44340, México
Yaneth Rodríguez-Agudelo
Affiliation:
Instituto Nacional de Neurología y Neurocirugía, MVS, Ciudad de México, México
Juan Carlos Arango-Lasprilla*
Affiliation:
Biocruces Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, 48903, Spain Ikerbasque, Basque Foundation for Science, Bilbao, Bizkaia, 48013, Spain
*
*Correspondence and reprint requests to: Juan Carlos Arango Lasprilla, Biocruces Bizkaia Health Research Institute, Cruces University Hospital, Plaza de Cruces s/n. 48903, Barakaldo, Spain; Ikerbasque, Basque Foundation for Science, Bilbao, Spain. E mail: jcalasprilla@gmail.com
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Abstract

Objective:

To determine the prevalence of low scores for two neuropsychological tests with five total scores that evaluate learning and memory functions.

Method:

N = 5402 healthy adults from 11 countries in Latin America and the commonwealth of Puerto Rico were administered the Rey–Osterrieth Complex Figure (ROCF) and the Hopkins Verbal Learning Test (HVLT-R). Two-thirds of the participants were women, and the average age was 53.5 ± 20.0 years. Z-scores were calculated for ROCF Copy and Memory scores and HVLT-R Total Recall, Delayed Recall, and Recognition scores, adjusting for age, age2, sex, education, and interaction variables if significant for the given country. Each Z-score was converted to a percentile for each of the five subtest scores. Each participant was categorized based on his/her number of low scoring tests in specific percentile cutoff groups (25th, 16th, 10th, 5th, and 2nd).

Results:

Between 57.3% (El Salvador) and 64.6% (Bolivia) of the sample scored below the 25th percentile on at least one of the five scores. Between 27.1% (El Salvador) and 33.9% (Puerto Rico) scored below the 10th percentile on at least one of the five subtests. Between 5.9% (Chile, El Salvador, Peru) and 10.3% (Argentina) scored below the 2nd percentile on at least one of the five scores.

Conclusions:

Results are consistent with other studies that found that low scores are common when multiple neuropsychological outcomes are evaluated in healthy individuals. Clinicians should consider the higher probability of low scores when evaluating learning and memory using various sets of scores to reduce false-positive diagnoses of cognitive deficits.

Keywords

NeuropsychologyNeuropsychological testMemory and learning testPsychometricsDiagnosisAdult
Type
Regular Research
Information
Journal of the International Neuropsychological Society , Volume 25 , Issue 8 , September 2019 , pp. 834 - 844
Copyright
Copyright © INS. Published by Cambridge University Press, 2019. 

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References

Aiken, L.S., West, S.G., & Reno, R.R. (1991). Multiple Regression: Testing and Interpreting Interactions. Thousand Oaks, CA: Sage Publications, Inc.Google Scholar
Arango-Lasprilla, J.C., & Rivera, D. (2015). Neuropsicología en Colombia: Datos normativos, estado actual y retos a futuro [Neuropsychology in Colombia: Normative Data, Current State and Future Challenges]. Manizales, Colombia: Editorial Universidad Autónoma de Manizales.Google Scholar
Arango-Lasprilla, J.C., Rivera, D., Garza, M.T., Saracho, C.P., Rodríguez, W., Rodríguez-Agudelo, Y., … & Martínez, C. (2015). Hopkins verbal learning test-revised: Normative data for the Latin American Spanish speaking adult population. NeuroRehabilitation, 37(4), 699–718.CrossRefGoogle ScholarPubMed
Arango-Lasprilla, J.C., Stevens, L., Morlett Paredes, A., Ardila, A., & Rivera, D. (2017). Profession of neuropsychology in Latin America. Applied Neuropsychology: Adult, 24(4), 318–330.CrossRefGoogle ScholarPubMed
Ardila, A., & Rosselli, M. (1994). Development of language, memory, and visuospatial abilities in 5- to 12-year-old children using a neuropsychological battery. Developmental Neuropsychology, 10(2), 97–120. doi: 10.1080/87565649409540571CrossRefGoogle Scholar
Arrufat, A.S., Olmos, J.G., & Blanxart, M.F. (1999). Introducción a la estadística en Psicología, Vol. 27. Edicions Universitat Barcelona.Google Scholar
Benedict, R.H.B. (1997). Brief Visuospatial Memory Test—Revised. Odessa, FL: Psychological Assessment Resources, Inc.Google Scholar
Benedict, R.H.B., Schretlen, D., Groninger, L., & Brandt, J. (1998). Hopkins verbal learning test—revised: Normative data and analysis of inter-form and test–retest reliability. Clinical Neuropsychologist, 12(1), 43–55. doi: 10.1076/clin.12.1.43.1726CrossRefGoogle Scholar
Berry, D.T., Allen, R.S., & Schmitt, F.A. (1991). Rey-Osterrieth complex figure: Psychometric characteristics in a geriatric sample. The Clinical Neuropsychologist, 5(2), 143–153. doi: 10.1080/13854049108403298CrossRefGoogle Scholar
Binder, L.M., Iverson, G.L., & Brooks, B.L. (2009). To err is human: “Abnormal” neuropsychological scores and variability are common in healthy adults. Archives of Clinical Neuropsychology, 24(1), 31–46. doi: 10.1093/arclin/acn001CrossRefGoogle Scholar
Brandt, J. (1991). The Hopkins Verbal Learning Test: Development of a new memory test with six equivalent forms. The Clinical Neuropsychologist, 5(2), 125–142. doi: 10.1080/13854049108403297CrossRefGoogle Scholar
Brandt, J., & Benedict, R.H. (2001). Hopkins Verbal Learning Test-Revised: Professional Manual. Odessa, FL: Psychological Assessment Resources.Google Scholar
Brooks, B.L., Holdnack, J.A., & Iverson, G.L. (2011). Advanced clinical interpretation of the WAIS-IV and WMS-IV: Prevalence of low scores varies by level of intelligence and years of education. Assessment, 18, 156–167. doi: 10.1177/1073191110385316CrossRefGoogle ScholarPubMed
Brooks, B.L., Holdnack, J.A., & Iverson, G.L. (2017). Reliable change on memory tests is common in healthy children and adolescents. Archives of Clinical Neuropsychology, 32(8), 1001–1009.CrossRefGoogle ScholarPubMed
Brooks, B.L. & Iverson, G.L. (2010). Comparing actual to estimated base rates of “abnormal” scores on neuropsychological test batteries: Implications for interpretation. Archives of Clinical Neuropsychology, 25(1), 14–21. doi: 10.1093/arclin/acp100CrossRefGoogle ScholarPubMed
Brooks, B.L., Iverson, G.L., Feldman, H.H., & Holdnack, J.A. (2009). Minimizing misdiagnosis: Psychometric criteria for determining possible or probable memory impairment. Dementia and Geriatric Cognitive Disorders, 27, 439–450. doi: 10.1159/000215390CrossRefGoogle ScholarPubMed
Brooks, B.L., Iverson, G.L., & Holdnack, J.A. (2013). Understanding multivariate base rates, In Holdnack, J.A., Drozdick, L., Weiss, L.G., & Iverson, G.L.(Eds.), WAIS-IV, WMS-IV, & ACS: Clinical Use and Interpretation (pp. 75–102). New York: Elsevier. doi: 10.1016/b978-0-12-386934-0.00002-xCrossRefGoogle Scholar
Brooks, B.L., Iverson, G.L., Holdnack, J.A., & Feldman, H.H. (2008). The potential for misclassification of mild cognitive impairment: A study of memory scores on the Wechsler Memory Scale-III in healthy older adults. Journal of the International Neuropsychological Society, 14(3), 463–478. doi: 10.1017/s1355617708080521CrossRefGoogle ScholarPubMed
Brooks, B.L., Iverson, G.L., & White, T. (2007). Substantial risk of “accidental MCI” in healthy older adults: Base rates of low memory scores in neuropsychological assessment. Journal of the International Neuropsychological Society, 13, 490–500. doi: 10.1017/s1355617707070531CrossRefGoogle ScholarPubMed
Brooks, B.L., Iverson, G.L., & White, T. (2009). Advanced interpretation of the Neuropsychological Assessment Battery (NAB) with older adults: Base rate analyses, discrepancy scores, and interpreting change. Archives of Clinical Neuropsychology, 24, 647–657. doi: 10.1093/arclin/acp061CrossRefGoogle ScholarPubMed
Brooks, B.L., Sherman, E.M., & Iverson, G.L. (2010). Healthy children get low scores too: Prevalence of low scores on the NEPSY-II in preschoolers, children, and adolescents. Archives of Clinical Neuropsychology, 25(3), 182–190. doi: 10.1093/arclin/acq005CrossRefGoogle ScholarPubMed
Brooks, B.L., Strauss, E., Sherman, E., Iverson, G.L., & Slick, D.J. (2009). Developments in neuropsychological assessment: Refining psychometric and clinical interpretive methods. Canadian Psychology/Psychologie Canadienne, 50(3), 196–209. doi: 10.1037/a0016066CrossRefGoogle Scholar
Buschke, H. (1973). Selective reminding for analysis of memory and learning. Journal of Verbal Learning and Verbal Behavior, 12(5), 543–550.CrossRefGoogle Scholar
Buschke, H., & Fuld, P.A. (1974). Evaluating storage, retention, and retrieval in disordered memory and learning. Neurology, 24(11), 1019–1019.CrossRefGoogle ScholarPubMed
Cherner, M., Suarez, P., Lazzaretto, D., Fortuny, L.A., Mindt, M.R., Dawes, S., … HNRC group. (2007). Demographically corrected norms for the Brief Visuospatial Memory Test-revised and Hopkins Verbal Learning Test-revised in monolingual Spanish speakers from the US–Mexico border region. Archives of Clinical Neuropsychology, 22(3), 343–353. doi: 10.1016/j.acn.2007.01.009CrossRefGoogle Scholar
Cysique, L.A., Jin, H., Franklin, D.R., Morgan, E.E., Shi, C., Yu, X., … Ake, C. (2007). Neurobehavioral effects of HIV-1 infection in China and the United States: A pilot study. Journal of the International Neuropsychological Society, 13(5), 781–790. doi: 10.1017/s1355617707071007CrossRefGoogle ScholarPubMed
Delis, D.C., Kramer, J.H., Kaplan, E., & Ober, B.A. (1987). CVLT: California Verbal Learning Test-Adult Version: Manual. Psychological Corporation.Google Scholar
Delis, D.C., Kramer, J.H., Kaplan, E., & Ober, B.A. (2000). CVLT-II: California Verbal Learning Test: Adult Version. Psychological Corporation.Google Scholar
Fastenau, P.S. (1996). Development and preliminary standardization of the “Extended Complex Figure Test” (ECFT). Journal of Clinical and Experimental Neuropsychology, 18(1), 63–76. doi: 10.1080/01688639608408263CrossRefGoogle Scholar
Fastenau, P.S., Denburg, N.L., & Hufford, B.J. (1999). Adult norms for the Rey-Osterrieth Complex Figure Test and for supplemental recognition and matching trials from the Extended Complex Figure Test. The Clinical Neuropsychologist, 13(1), 30–47. doi: 10.1076/clin.13.1.30.1976CrossRefGoogle ScholarPubMed
Fernando, K., Chard, L., Butcher, M., & McKay, C. (2003). Standardization of the Rey Complex Figure Test in New Zealand children and adolescents. New Zealand Journal of Psychology, 32(1), 33–38.Google Scholar
Folstein, M.F., Folstein, S.E., & McHugh, P.R. (1975). “Minimental state”: A practical method for grading the cognitive state of patients for the clinician. Journal of Psychiatric Research, 12(3), 189–198. doi: 10.1016/0022-3956(75)90026-6CrossRefGoogle Scholar
Galindo, G. & Cortes, J.F. (2003). The ROCF and the complex figure for children in Spanish speaking populations. In J.Knight, A. &Kaplan, E. (Eds.), The Handbook of Rey-Osterrieth Complex Figure Usage: Clinical and Research Applications. Lutz, FL: Psychological Assessment Resources.Google Scholar
Guàrdia, J., Jarne, A., Pena-Casanova, J., & Gil, D. (2005). Análisis de resultados y proceso de normalización [Analysis of Results and Process of Normalization]. Barcelona Test-Revised. Barcelona: Masson.Google Scholar
Guàrdia-Olmos, J., Peró-Cebollero, M., Rivera, D., & Arango-Lasprilla, J.C. (2015a). Methodology for the development of normative data for ten Spanish-language neuropsychological tests in eleven Latin American countries. NeuroRehabilitation, 37(4), 493–499. doi: 10.3233/nre-151277CrossRefGoogle ScholarPubMed
Guàrdia-Olmos, J., Rivera, D., Peró-Cebollero, M., & Arango-Lasprilla, J.C. (2015b). Metodología para la creación de datos normativos para pruebas neuropsicológicas en población Colombiana. In Arango-Lasprilla, J.C. &Rivera, D. (Eds.), Neuropsicología en Colombia: Datos normativos, estado actual y retos a futuro (pp. 47–80). Manizales, Colombia: Editorial Universidad Autónoma de Manizales.Google Scholar
Hoare, J., Westgarth-Taylor, J., Fouche, J.P., Combrinck, M., Spottiswoode, B., Stein, D.J., & Joska, J.A. (2012). Relationship between apolipoprotein E4 genotype and white matter integrity in HIV-positive youth adults in South Africa. European Archives of Psychiatry and Clinical Neuroscience, 263(3), 189–195. doi: 10.1007/s00406-012-0341-8CrossRefGoogle ScholarPubMed
Holdnack, J.A., Tulsky, D.S., Brooks, B.L., Slotkin, J., Gershon, R., Heinemann, A.W., & Iverson, G.L. (2017). Interpreting patterns of low scores on the NIH toolbox cognition battery. Archives of Clinical Neuropsychology, 32(5), 574–584.CrossRefGoogle ScholarPubMed
IBM Corp. (2015). SPSS Version 23.0. Armonk, NY: IBM Corp.Google Scholar
Kanmogne, G.D., Kuate, C.T., Cysique, L.A., Fonsah, J.Y., Eta, S., Doh, R., … McCutchan, J.A. (2010). HIV-associated neurocognitive disorders in sub-Saharan Africa: A pilot study in Cameroon. BMC Neurology, 10(1), 60. doi: 10.1186/1471-2377-10-60CrossRefGoogle ScholarPubMed
Kroenke, K., Spitzer, R.L., & Williams, J.B. (2001). The PHQ-9. Journal of General Internal Medicine, 16(9), 606–613. doi: 10.1046/j.1525-1497.2001.016009606.xCrossRefGoogle ScholarPubMed
Kuslansky, G., Katz, M., Verghese, J., Hall, C.B., Lapuerta, P., LaRuffa, G., & Lipton, R.B. (2004). Detecting dementia with the Hopkins verbal learning test and the mini-mental state examination. Archives of Clinical Neuropsychology, 19(1), 89–104. doi: 10.1016/s0887-6177(02)00217-2CrossRefGoogle ScholarPubMed
Kutner, M.H., Nachtsheim, C.J., Neter, J., & Li, W. (2005). Applied Linear Statistical Models (5th ed.). New York: McGraw Hill.Google Scholar
Mahoney, F.I. & Barthel, D. (1965). Functional evaluation: The Barthel Index. Maryland State Medical Journal, 14, 56–61.Google ScholarPubMed
Oltra-Cucarella, J., Sánchez-SanSegundo, M., Lipnicki, D.M., Sachdev, P.S., Crawford, J.D., Pérez-Vicente, J.A., … Alzheimer’s Disease Neuroimaging Initiative. (2018). Using base rate of low scores to identify progression from Amnestic Mild Cognitive Impairment to Alzheimer’s Disease. Journal of the American Geriatrics Society, 66(7), 1360–1366.CrossRefGoogle ScholarPubMed
Osterrieth, P.A. (1944). Le test de copie d’une figure complexe; contribution à l’étude de la perception et de la mémoire [Test of copying a complex figure; contribution to the study of perception and memory]. Archives de Psychologie, 30, 206–356.Google Scholar
Peña-Casanova, J., Blesa, R., Aguilar, M., Gramunt-Fombuena, N., Gómez-Ansón, B., Oliva, R., … Martínez-Parra, C. (2009). Spanish multicenter normative studies (NEURONORMA project): Methods and sample characteristics. Archives of Clinical Neuropsychology, 24(4), 307–319.CrossRefGoogle ScholarPubMed
Rey, A. (1941). L’examen psychologique dans les cas d’encéphalopathie traumatique (les problems). Archives de Psychologie, 28, 286–340.Google Scholar
Rey, A. (1958). L’examen clinique en psychologie. Paris: Presse Universitaire de France.Google Scholar
Rey, A. (2009). REY: Test de copia y de reproducción de memoria de figuras geométricas complejas. Madrid: TEA Ediciones.Google Scholar
Rivera, D. & Arango-Lasprilla, J.C. (2017). Methodology for the development of normative data for Spanish-speaking pediatric populations. NeuroRehabilitation, 41(3), 581–592. doi: 10.3233/nre-172275CrossRefGoogle ScholarPubMed
Rivera, D., Olivera Plaza, S.L., Quijano, M.C., Calderón Chagualá, J.A., De los Reyes Aragón, C.J., Utria Rodríguez, O.E., … Arango-Lasprilla, J.C. (2015b). Datos normativos del test de aprendizaje verbal de Hopkins—Revisado para población Colombiana. In Arango-Lasprilla, J.C. & Rivera, D. (Eds.), Neuropsicología en Colombia: Datos normativos, estado actual y retos a futuro (pp. 239–252). Manizales, Colombia: Editorial Universidad Autónoma de Manizales.Google Scholar
Rivera, D., Perrin, P.B., Morlett-Paredes, A., Galarza-del-Angel, J., Martinez, C., Garza, M.T., … Aliaga, A. (2015a). Rey–Osterrieth complex figure–copy and immediate recall: Normative data for the Latin American Spanish speaking adult population. NeuroRehabilitation, 37(4), 677–698. doi: 10.3233/nre-151285CrossRefGoogle ScholarPubMed
Schretlen, D.J., Testa, S.M., Winicki, J.M., Pearlson, G.D., & Gordon, B. (2008). Frequency and bases of abnormal performance by healthy adults on neuropsychological testing. Journal of the International Neuropsychological Society, 14(3), 436–445. doi: 10.1017/s1355617708080387CrossRefGoogle ScholarPubMed
Shapiro, A.M., Benedict, R.H., Schretlen, D., & Brandt, J. (1999). Construct and concurrent validity of the Hopkins Verbal Learning Test–Revised. The Clinical Neuropsychologist, 13(3), 348–358. doi: 10.1076/clin.13.3.348.1749CrossRefGoogle ScholarPubMed
Sherman, E.M.S. & Brooks, B.L. (2015). Child and adolescent memory profile (ChAMP). Lutz, Florida: Psychological Assessment Resources.Google Scholar
Sherman, E.M.S. & Brooks, B.L. (2017). Multidimensional Everyday Memory Ratings for Youth (MEMRY). Lutz, Florida: Psychological Assessment Resources.Google Scholar
Shimamura, A.P., Salmon, D.P., Squire, L.R., & Butters, N. (1987). Memory dysfunction and word priming in dementia and amnesia. Behavioral Neuroscience, 101(3), 347–351.CrossRefGoogle ScholarPubMed
Shin, M.S., Park, S.Y., Park, S.R., Seol, S.H., & Kwon, J.S. (2006). Clinical and empirical applications of the Rey-Osterrieth complex figure test. Nature Protocols, 1(2), 892–899. doi: 10.1038/nprot.2006.115CrossRefGoogle ScholarPubMed
Silverstein, S.M., Osborn, L.M., & Palumbo, D.R. (1998). Rey-Osterrieth complex figure test perfomance in acute, chronic, and remitted schizophrenia patients. Journal of Clinical Psychology, 54(7), 985–994.3.0.CO;2-G>CrossRefGoogle Scholar
Strauss, E., Sherman, E.M.S., & Spreen, O. (2006). A Compendium of Neuropsychological Tests: Administration, Norms, and Commentary. New York: Oxford University.Google Scholar
Tierney, M.C., Nores, A.N., Snow, W.G., Fisher, R.H., Zorzitto, M.L., & Reid, D.W. (1994). Use of the key auditory verbal learning test in differentiating normal aging from Alzheimer’s and Parkinson’s Dementia. Psychological Assessment, 6(2), 129–134.CrossRefGoogle Scholar
Trahan, D.E. & Larrabee, G.J. (1988). Continuous Visual Memory Test: Professional Manual. Psychological Assessment Resources.Google Scholar
Van Der Elst, W., Van Boxtel, M.P., Van Breukelen, G.J., & Jolles, J. (2006a). Normative data for the animal, profession and letter M naming verbal fluency tests for Dutch speaking participants and the effects of age, education, and sex. Journal of the International Neuropsychological Society, 12(1), 80–89. doi: 10.1017/s1355617706060115CrossRefGoogle Scholar
Van Der Elst, W., Van Boxtel, M.P., Van Breukelen, G.J., & Jolles, J. (2006b). The letter digit substitution test: Normative data for 1, 858 healthy participants aged 24-81 from the Maastricht Aging Study (MAAS): Influence of age, education, and sex. Journal of Clinical and Experimental Neuropsychology, 28(6), 998–1009. doi: 10.1080/13803390591004428CrossRefGoogle Scholar
Villaseñor-Cabrera, T., Guàrdia-Olmos, J., Jiménez-Maldonado, M., Rizo-Curiel, G., & Peró-Cebollero, M. (2010). Sensitivity and specificity of the Mini-Mental State Examination in the Mexican population. Quality & Quantity, 44(6), 1105–1112. doi: 10.1007/s11135-009-9263-6CrossRefGoogle Scholar
Vogel, A., Stokholm, J., & Jorgensen, K. (2012). Performances on Rey Auditory Verbal Learning Test and Rey Complex Figure Test in a healthy, elderly Danish sample: Reference data and validity issues. Scandinavian Journal of Psychology, 53(1), 26–31. doi: 10.1111/j.1467-9450.2011.00909.xCrossRefGoogle Scholar
Waber, D.P. & Holmes, J.M. (1985). Assessing children’s copy productions of the Rey-Osterrieth Complex Figure. Journal of Clinical and Experimental Neuropsychology, 7(3), 264–280. doi: 10.1080/01688638508401259CrossRefGoogle ScholarPubMed
Wechsler, D. (2009). Advanced Clinical Solutions for the WAIS-IV and WMS-IV. San Antonio, TX: The Psychological Corporation.Google Scholar
Yepthomi, T., Paul, R., Vallabhaneni, S., Kumarasamy, N., Tate, D.F., Solomon, S., & Flanigan, T. (2006). Neurocognitive consequences of HIV in southern India: A preliminary study of clade C virus. Journal of the International Neuropsychological Society, 12(3), 424–430. doi: 10.1017/s1355617706060516CrossRefGoogle ScholarPubMed
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