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Clinical Neuropsychologist

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https://www.readbyqxmd.com/read/28430031/evaluation-of-multidimensional-models-of-wais-iv-subtest-performance
#1
Dennis J McFarland
OBJECTIVE: The present study examined the extent to which the covariance structure of the WAIS-IV is best accounted for by models that assume that test performance is the result of group-level factors and multiple independent general factors. METHOD: Structural models with one to four general factors were evaluated with either four or five group-level factors. Simulations based on four general factors were run to clarify the adequacy of the estimates of the allocation of covariance by the models...
April 21, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28429656/baseline-cognitive-test-performance-and-concussion-like-symptoms-among-adolescent-athletes-with-adhd-examining-differences-based-on-medication-use
#2
Nathan E Cook, Donna S Huang, Noah D Silverberg, Brian L Brooks, Bruce Maxwell, Ross Zafonte, Paul D Berkner, Grant L Iverson
OBJECTIVE: Youth with attention deficit hyperactivity disorder (ADHD) perform more poorly on preseason cognitive testing and report more baseline concussion-like symptoms but prior studies have not examined the influence of medication use on test performance or symptom reporting. This study investigated whether medication use is relevant when interpreting baseline ImPACT® results from student athletes with ADHD. METHOD: Participants were 39,247 adolescent athletes, ages 13-18 (mean age = 15...
April 21, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28429639/review-of-doing-bayesian-data-analysis-a-tutorial-with-r-jags-and-stan-second-edition
#3
Charles E Gaudet
No abstract text is available yet for this article.
April 21, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28429633/the-reliability-of-multidimensional-neuropsychological-measures-from-alpha-to-omega
#4
Marley W Watkins
OBJECTIVE: To demonstrate that Coefficient omega, a model-based estimate, is more a more appropriate index of reliability than coefficient alpha for the multidimensional scales that are commonly employed by neuropsychologists. METHOD: As an illustration, a structural model of an overarching general factor and four first-order factors for the WAIS-IV based on the standardization sample of 2200 participants was identified and omega coefficients were subsequently computed for WAIS-IV composite scores...
April 21, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28415909/detecting-coached-neuropsychological-dysfunction-a-simulation-experiment-regarding-mild-traumatic-brain-injury
#5
Lily Lau, Michael R Basso, Eduardo Estevis, Ashley Miller, Douglas M Whiteside, Dennis Combs, Timothy J Arentsen
OBJECTIVE: Performance validity tests (PVTs) and symptom validity tests (SVTs) are often administered during neuropsychological evaluations. Examinees may be coached to avoid detection by measures of response validity. Relatively little research has evaluated whether graduated levels of coaching has differential effects upon PVT and SVT performance. Accordingly, the present experiment evaluated the effect of graduated levels of coaching upon the classification accuracy of commonly used PVTs and SVTs and the currently accepted criterion of failing two or more PVTs or SVTs...
April 18, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28397546/measuring-cognitive-change-with-impact-the-aggregate-baseline-approach
#6
Jared M Bruce, Ruben J Echemendia, Willem Meeuwisse, Michael G Hutchison, Mark Aubry, Paul Comper
OBJECTIVE: The Immediate Post-Concussion Assessment and Cognitive Test (ImPACT) is commonly used to assess baseline and post-injury cognition among athletes in North America. Despite this, several studies have questioned the reliability of ImPACT when given at intervals employed in clinical practice. Poor test-retest reliability reduces test sensitivity to cognitive decline, increasing the likelihood that concussed athletes will be returned to play prematurely. We recently showed that the reliability of ImPACT can be increased when using a new composite structure and the aggregate of two baselines to predict subsequent performance...
April 11, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28395578/changing-relations-among-cognitive-abilities-across-development-implications-for-measurement-and-research
#7
Jala Rizeq, David B Flora, Maggie E Toplak
OBJECTIVE: The constructs of intelligence and executive function (EF) are commonly used in neuropsychological, cognitive, and developmental research, and in the context of clinical assessment. Yet, we have a limited understanding of the changing age-related associations among these cognitive constructs and the implications for measurement and research. The objectives of this study were to compare hypothetical models using intellectual abilities (non-age corrected scores of intelligence or IQ) and experimental measures of EF and to better understand the role of age in determining the associations between these cognitive abilities at two different periods of development...
April 11, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28391774/exploring-the-sensitivity-of-the-personality-assessment-inventory-symptom-validity-tests-in-detecting-response-bias-in-a-mixed-neuropsychological-outpatient-sample
#8
Owen J Gaasedelen, Douglas M Whiteside, Michael Basso
OBJECTIVE: Few studies have evaluated the symptom validity tests (SVTs) within the Personality Assessment Inventory (PAI) in a neuropsychological assessment context. Accordingly, the present study explored the accuracy of PAI SVTs in identifying exaggerated cognitive dysfunction in a mixed sample of outpatients referred for neuropsychological assessment. METHOD: Participants who failed two or more Performance Validity Tests (PVTs) were classified as having exaggerated cognitive dysfunction (n = 49)...
April 10, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28391739/taxonomy-for-education-and-training-in-clinical-neuropsychology-past-present-and-future
#9
Scott A Sperling, Cynthia R Cimino, Nikki H Stricker, Amy K Heffelfinger, Jennifer L Gess, Katie E Osborn, Brad L Roper
OBJECTIVE: Historically, the clinical neuropsychology training community has not clearly or consistently defined education or training opportunities. The lack of consistency has limited students' and trainees' ability to accurately assess and compare the intensity of neuropsychology-specific training provided by programs. To address these issues and produce greater 'truth in advertising' across programs, CNS, with SCN's Education Advisory Committee (EAC), ADECN, AITCN, and APPCN constructed a specialty-specific taxonomy, namely, the Taxonomy for Education and Training in Clinical Neuropsychology...
April 10, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28387582/long-term-test-retest-reliability-of-the-california-verbal-learning-test-second-edition
#10
Andrea G Alioto, Joel H Kramer, Sarah Borish, John Neuhaus, Rowan Saloner, Matthew Wynn, Jessica M Foley
OBJECTIVE: Aging is often associated with declines in episodic memory. Reliable tracking of memory requires assessment instruments that are stable over time to better understand changes potentially attributable to neurodegenerative disease. While prior studies support the test-retest reliability of memory instruments over brief intervals, follow-up testing in clinical settings typically occurs at least one-year later. The present study evaluated the long-term test-retest reliability of the California Verbal Learning Test - second edition (CVLT-2), a widely used measure of episodic learning and memory...
April 7, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28361565/education-training-and-practice-among-nordic-neuropsychologists-results-from-a-professional-practices-survey
#11
A Norup, J Egeland, M Løvstad, T Nybo, B A Persson, D Rivera, A-K Schanke, S Sigurdardottir, J C Arango-Lasprilla
OBJECTIVE: To investigate sociodemographic characteristics, clinical and academic training, work setting and salary, clinical activities, and salary and job satisfaction among practicing neuropsychologists in four Nordic countries. METHODS: 890 neuropsychologists from Denmark, Finland, Norway, and Sweden participated in an internet-based survey between December 2013 and June 2015. RESULTS: Three-fourths (76%) of the participants were women, with a mean age of 47 years (range 24-79)...
March 31, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28349725/the-effect-of-stereotype-threat-on-older-people-s-clinical-cognitive-outcomes-investigating-the-moderating-role-of-dementia-worry
#12
Megan Fresson, Benoit Dardenne, Marie Geurten, Thierry Meulemans
OBJECTIVE: Numerous studies have shown that stereotype threat (ST) reduces older people's cognitive performance, but few have studied its impact on clinical cognitive outcomes. Our study was designed to further examine the impact of ST on the clinical assessment of older subjects' cognitive functioning, as well as the moderating role of fear of Alzheimer's Disease (AD) (or 'dementia worry'). METHOD: Seventy-two neurologically normal (MMSE > 26) participants aged between 59 and 70 completed a set of neuropsychological tasks in either an ST or a positive condition (condition in which negative stereotypes were invalidated)...
March 28, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28276860/a-parsimonious-scoring-and-normative-calculator-for-the-parkinson-s-disease-mild-cognitive-impairment-battery
#13
Ondrej Bezdicek, Zdenek Sulc, Tomas Nikolai, Hana Stepankova, Miloslav Kopecek, Robert Jech, Evžen Růžička
OBJECTIVE: The aim of the present study was to provide a regression-based calculator that takes premorbid functioning into account to detect subtle cognitive decline, as is often present in pre-dementia states, especially mild cognitive impairment in Parkinson's disease (PD-MCI). METHOD: We used demographic adjustments based on sex, age, and education of 699 normative participants that fulfilled exclusion criteria for ascertaining the diagnostic accuracy of the Movement Disorders Society PD-MCI battery at Level II...
February 28, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28276861/screening-for-dementia-in-arabic-normative-data-from-an-elderly-lebanese-sample
#14
Fadi Abou-Mrad, Gordon Chelune, Edward Zamrini, Lubna Tarabey, Maryse Hayek, Patricia Fadel
OBJECTIVE: Prevention and treatment of dementia is a global concern that requires involvement of international samples. The purpose of this study is to develop culturally sensitive norms based on normal older Lebanese adults using multiple cognitive screening measures translated into Arabic for regional use. METHODS: Participants were 164 community dwelling older Lebanese adults without cognitive complaints. They were administered the following cognitive measures in Arabic: Alzheimer's Disease 8-item questionnaire, Montreal Cognitive Assessment, Mini Mental Status Exam, Modified Mini Mental Status, Brief Visuospatial Memory Test-Revised, Lebanese Digit Span, Cross-Linguistic Naming Test, and phonemic and semantic fluency tests...
February 23, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28276864/establishing-normative-data-for-multi-trial-memory-tests-the-multivariate-regression-based-approach
#15
Wim Van der Elst, Geert Molenberghs, Marleen van Tetering, Jelle Jolles
OBJECTIVE: Multi-trial memory tests are widely used in research and clinical practice because they allow for assessing different aspects of memory and learning in a single comprehensive test procedure. However, the use of multi-trial memory tests also raises some key data analysis issues. Indeed, the different trial scores are typically all correlated, and this correlation has to be properly accounted for in the statistical analyses. In the present paper, the focus is on the setting where normative data have to be established for multi-trial memory tests...
February 17, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28276863/when-synesthesia-and-savant-abilities-are-mistaken-for-hallucinations-and-delusions-contribution-of-a-cognitive-approach-for-their-differential-diagnosis
#16
Lucie Bouvet, Jacques-Edouard Barbier, Nia Cason, Serge Bakchine, Nathalie Ehrlé
OBJECTIVE: Schizophrenia is characterized by hallucinations, delusions, disorganized speech and behavior, and other symptoms that cause social or occupational dysfunction. However, some of these symptoms, such as hallucinations and delusions, can be indicative of other phenomena such as synesthesia and savant abilities. The aim of this paper is to highlight how neurological and psychiatric conditions can be confused and how formal neuropsychological evaluations can be necessary to distinguish them...
February 17, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28276862/excessive-decline-from-premorbid-functioning-detecting-performance-invalidity-with-the-wais-iv-and-demographic-predictions
#17
Phillip K Martin, Ben P Hunter, Amanda M Rach, Robin J Heinrichs, Ryan W Schroeder
OBJECTIVE: Excessive Decline from Premorbid Functioning (EDPF) is presented as a construct and defined as a discrepancy between predicted premorbid ability and current test performance that is so atypical of individuals with true neurocognitive impairment that it is likely the product of performance invalidity. New embedded PVTs (EDPF-FSIQ, EDPF-VW, and EDPF-PP) were derived by comparing scores from the WAIS-IV to TOPF demographically predicted premorbid estimates and then examined for classification accuracy...
February 17, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28276865/assessment-of-executive-function-in-young-children-with-and-without-asd-using-parent-ratings-and-computerized-tasks-of-executive-function
#18
Emily Gardiner, Sarah M Hutchison, Ulrich Müller, Kimberly A Kerns, Grace Iarocci
OBJECTIVE: The current study investigated executive function (EF) in young children with and without autism spectrum disorder (ASD) using multiple methods of assessment. METHOD: Young children (M = 63.2 months) with and without ASD, matched on age, IQ, and maternal education, were assessed on computerized measures of working memory, inhibition, flexibility, and planning. Parents completed a behavior rating scale assessing children's EF within everyday contexts...
February 16, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28276866/performance-validity-and-processing-speed-in-a-va-polytrauma-sample
#19
Lee Ashendorf, Erika L Clark, Michael A Sugarman
OBJECTIVE: While recognition memory has been the primary tool for the assessment of performance validity in neuropsychological evaluations, some consideration has also been given to embedded measures from other cognitive domains, including processing speed. The present study evaluated the classification accuracy of several speed-based measures in a Veterans Affairs Medical Center Polytrauma sample. METHOD: The present sample consisted of 114 military veterans (Mean age = 35...
February 10, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28156190/the-visual-association-test-extended-a-cross-sectional-study-of-the-performance-validity-measures
#20
Sascha R A Meyer, Jos F M de Jonghe, Ben Schmand, Rudolf W H M Ponds
OBJECTIVE: Given the hazards of knowledge about performance validity tests (PVTs) being proliferated among the general public, there is a continuous need to develop new PVTs. The purpose of these studies was to validate the newly developed Visual Association Test-Extended (VAT-E). METHOD: The VAT-E consists of 24 pairs of line drawings; it is partly based on Green's Word Memory Test (WMT) paradigm. In study 1, we compared VAT-E total scores of healthy controls (n = 226), patients with mild cognitive impairment (MCI) (n = 76), patients with Alzheimer's disease (AD) (n = 26), and persons instructed to feign memory deficit (n = 29)...
February 3, 2017: Clinical Neuropsychologist
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