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Researchers who have been responsible for developing test batteries have argued that competent practice requires the use of a "fixed battery" that is co-normed. We tested this assumption with three normative systems: co-normed,... more
Researchers who have been responsible for developing test batteries have argued that competent practice requires the use of a "fixed battery" that is co-normed. We tested this assumption with three normative systems: co-normed, meta-regressed norms and a system of these two methods. We analyzed two samples: 330 referred patients and 99 undergraduate volunteers. The T scores generated for referred patients using the three systems were highly associated with one another and quite similar in magnitude, with an Overall Test Battery Means (OTBMs) using the co-normed, hybrid, and meta-regressed scores equaled 43.8, 45.0, and 43.9, respectively. For volunteers, the OTBMs equaled 47.4, 47.5, and 47.1, respectively. The correlations amongst these OTBMs across systems were all above .90. Differences among OTBMs across normative systems were small and not clinically meaningful. We conclude that co-norming for competent clinical practice is not necessary.
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From time to time, the peer review process necessitates ad hoc consultation of experts who are not on the journal’s editorial board. The editors of Child Neuropsychology wish to acknowledge with gratitude the following persons for offering their advice and expertise in connection with articles su...more
Research Interests: Psychiatry, Communication, Schizophrenia, Cognition, Socialization, and 15 moreIntellectual Disability, Emotions, Motivation, Factor analysis, Humans, Hospitalization, Rating Scale, Middle Aged, Adult, Factor structure, Age of Onset, Psychology and Cognitive Sciences, Factor model, Medical and Health Sciences, and Confirmatory factor analyses
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Research Interests: Psychology, Cognitive Science, Auditory Perception, Visual perception, Working Memory, and 15 moreLearning, Humans, Maximum Likelihood, Female, Confirmatory factor analysis, Male, Aged, Middle Aged, Adult, Visual Memory, Reproducibility of Results, Memory Disorders, Likelihood Functions, Neurosciences, and Factor model
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Research Interests: Psychology, Cognitive Science, Adolescent, Humans, Female, and 15 moreMale, Young Adult, Aged, Middle Aged, Adult, Malingering, Reproducibility of Results, Intelligence tests, Sensitivity and Specificity, Neurosciences, Cognition disorders, Disabled Persons, Brain injuries, Neuropsychological Tests, and Disability Evaluation
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The reliability and validity of various short forms of the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III; D. Wechsler, 1997) were evaluated in a sample of 100 patients with traumatic brain injury and in a demographically... more
The reliability and validity of various short forms of the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III; D. Wechsler, 1997) were evaluated in a sample of 100 patients with traumatic brain injury and in a demographically matched subgroup from the standardization sample. All short forms were based on 2-subtest estimations of the respective factor indexes. Although acceptable estimates could be obtained from all short forms for Verbal Comprehension, none of the possible short forms for Perceptual Organization consistently met the minimum criterion regarding the percentage of cases that fell within the 90% confidence interval of the full-length index. It is concluded that short-form estimates of the WAIS-III are not appropriate for clinical use when the goal is to obtain factor indexes.
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Research Interests: Psychology, Psychological Assessment, Cognitive Science, Adolescent, Humans, and 15 moreBusiness and Management, Female, Male, Regression Analysis, Aged, Middle Aged, Adult, Correlation coefficient, Indexation, Memory Disorders, Neurosciences, Predictive value of tests, Prediction Accuracy, Brain injuries, and Neuropsychological Tests
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Assessment of effort on cognitive testing has become a suggested standard in both forensic and clinical neuropsychological assessment. Both stand-alone and empirically derived embedded measures have been developed, however guidelines for... more
Assessment of effort on cognitive testing has become a suggested standard in both forensic and clinical neuropsychological assessment. Both stand-alone and empirically derived embedded measures have been developed, however guidelines for combining several measures are not always available. This study used logistic regression analysis to derive a multivariable composite to detect suboptimal effort using scores extracted from commonly administered neuropsychological
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The administration times for each of the subtests from the Wechsler Adult Intelligence Scale-III (WAIS-III) and Wechsler Memory Scale-III (WMS-III) were recorded for a clinical sample of 81 patients. The findings revealed that the time... more
The administration times for each of the subtests from the Wechsler Adult Intelligence Scale-III (WAIS-III) and Wechsler Memory Scale-III (WMS-III) were recorded for a clinical sample of 81 patients. The findings revealed that the time needed to administer the WAIS-III subtests to generate the summary scores, index scores, and both scores were 58, 51, and 65 min, respectively. The time
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... have combined demographic regression and current ability approaches, using either different forms of the NART (Crawford, Nelson, Blackmore ... For example, Mortensen, Gade, and Reinisch (1991) found that when solely relying on WAIS... more
... have combined demographic regression and current ability approaches, using either different forms of the NART (Crawford, Nelson, Blackmore ... For example, Mortensen, Gade, and Reinisch (1991) found that when solely relying on WAIS subtests, the best-performance method ...
Research Interests: Psychology, Psychological Assessment, Demography, Research Methodology, Psychometrics, and 14 moreIntelligence, Methodology, Cognition, Business and Management, Psychological, Evaluation methods, Group membership, Cognitive Ability, Intelligence tests, Robust Regression, Intelligence quotient, Brain Damage, Statistical Regression, and Regression equation
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Assessment of response validity is an integral part of forensic neuropsychological evaluations. The utility of performance validity measures (PVMs) in patients with potentially impaired cognitive functioning is less studied. The purpose... more
Assessment of response validity is an integral part of forensic neuropsychological evaluations. The utility of performance validity measures (PVMs) in patients with potentially impaired cognitive functioning is less studied. The purpose of the current study was to compare the three potential profiles of the Medical Symptom Validity Test (MSVT; Pass, Genuine Memory Impairment Profile [GMIP], and Fail) on other freestanding and embedded PVMs. Patients referred for a neuropsychological evaluation in a metropolitan Veteran Affairs medical center were included (N = 638). Each patient was administered the MSVT as well as other freestanding and embedded PVMs. Raw scores for each task, as well as incidence of scores below cutoffs were computed. The sample revealed 260 (41%) in the Pass group. Of the 378 who failed the easy subtests of the MSVT, 314 (83%) had a GMIP and 64 (17%) were classified as Fail. The Pass group failed fewer freestanding and embedded PVMs and obtained higher raw scores...