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Author Dustin B Hammers

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Validation of one-year reliable change in the RBANS for community-dwelling older adults with amnestic mild cognitive impairment.

Dustin B Hammers, Kayla R Suhrie, Sariah M Porter, Ava M Dixon, Kevin Duff,

OBJECTIVE:The current study sought to externally validate previously published standardized regression-based (SRB) equations for the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Indexes administered twice over a one-year period. Method: Hammers and colleagues' SRB prediction equations were applied to two independent samples of community-dwelling older adults with amnestic ... Read more >>

Clin Neuropsychol (The Clinical neuropsychologist)
[2020, :1-24]

Cited: 0 times

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Validating 1-Year Reliable Change Methods.

Dustin B Hammers, Sariah Porter, Ava Dixon, Kayla R Suhrie, Kevin Duff,

OBJECTIVE:reliable change methods can assist in the determination of whether observed changes in performance are meaningful. The current study sought to validate previously published 1-year standardized regression-based (SRB) equations for commonly administered neuropsychological measures that incorporated baseline performances, demographics, and 1-week practice effects. METHOD:Duff et al.'s SRB prediction equations were applied ... Read more >>

Arch Clin Neuropsychol (Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists)
[2020, :]

Cited: 0 times

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A survey of international clinical teleneuropsychology service provision prior to and in the context of COVID-19.

Dustin B Hammers, Renerus Stolwyk, Lana Harder, C Munro Cullum,

Objective: Despite expansion of telecommunication strategies across health services and data supporting feasibility of videoconference-based neuropsychological assessment, relatively little is known about teleneuropsychology (TeleNP) use in practice. The current COVID-19 pandemic provides an opportunity for greater use of TeleNP and understanding of neuropsychologists' experience with this unique assessment medium.Methods: During ... Read more >>

Clin Neuropsychol (The Clinical neuropsychologist)
[2020, 34(7-8):1267-1283]

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Developing learning slope scores for the repeatable battery for the assessment of neuropsychological status.

Robert J Spencer, Brian D Gradwohl, Trevor F Williams, Victoria M Kordovski, Dustin B Hammers,

Initial learning and learning slope are often acknowledged as important qualitative aspects of learning, but the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) contains discrete indices for neither. The traditional method of calculating learning slope involves a difference score between the last trial and first trial, which is ... Read more >>

Appl Neuropsychol Adult (Applied neuropsychology. Adult)
[2020, :1-7]

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Validation of one-week reliable change methods in cognitively intact community-dwelling older adults.

Dustin B Hammers, Kayla R Suhrie, Ava Dixon, Sariah Porter, Kevin Duff,

OBJECTIVE:Reliable change methods can assist the determination of whether observed changes in performance are meaningful. The current study sought to validate previously published standardized regression-based (SRB) equations for commonly administered cognitive tests using a cognitively intact sample of older adults, and extend findings by including relevant demographic and test-related variables ... Read more >>

Neuropsychol Dev Cogn B Aging Neuropsychol Cogn (Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition)
[2020, :1-21]

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Practice effects in mild cognitive impairment: A validation of Calamia et al. (2012).

Kevin Duff, Dustin B Hammers,

Objective: In a meta-analysis examining practice effects on repeated neuropsychological testing, Calamia et al. (2012) provided information to predict practice effects in healthy and clinical samples across a range of cognitive domains. However, these estimates have not been validated.Method: This study used these prediction estimate calculations to predict follow-up scores across ... Read more >>

Clin Neuropsychol (The Clinical neuropsychologist)
[2020, :1-13]

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Examining the Relationship between a Verbal Incidental Learning Measure from the WAIS-IV and Neuroimaging Biomarkers for Alzheimer's Pathology.

Dustin B Hammers, Amanda Kucera, Robert J Spencer, Tracy J Abildskov, Zane G Archibald, John M Hoffman, Elizabeth A Wilde,

Convergent validation of a verbal incidental learning (IL) task from the WAIS-IV using neuroimaging biomarkers is warranted to understand its sensitivity to Alzheimer's disease (AD) pathology. Fifty-five memory clinic patients aged 59 to 87 years received neuropsychological assessment, and measures of IL and quantitative brain imaging. Worse IL-Total Score and IL-Similarities ... Read more >>

Dev Neuropsychol (Developmental neuropsychology)
[2020, 45(3):95-109]

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Generalizability of reliable change equations for the RBANS over one year in community-dwelling older adults.

Dustin B Hammers, Kayla R Suhrie, Sariah M Porter, Ava M Dixon, Kevin Duff,

Objective: Reliable change methods can assist neuropsychologists in determining whether observed changes in a patient's performance are clinically meaningful. The current study sought to validate previously published standardized regression-based (SRB) equations for the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Indexes and subtests.Methods: Duff and colleagues's SRB prediction ... Read more >>

J Clin Exp Neuropsychol (Journal of clinical and experimental neuropsychology)
[2020, 42(4):394-405]

Cited: 0 times

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Questioning the Effort Hypothesis That Depressed Patients Perform Disproportionately Worse on Effortful Cognitive Tasks.

Dustin B Hammers, Sara Weisenbach,

Percept Mot Skills (Perceptual and motor skills)
[2020, 127(2):401-414]

Cited: 0 times

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Reliable change in cognition over 1 week in community-dwelling older adults: a validation and extension study.

Dustin B Hammers, Kayla R Suhrie, Ava Dixon, Sariah Porter, Kevin Duff,

OBJECTIVE:Reliable change methods can aid neuropsychologists in understanding if performance differences over time represent clinically meaningful change or reflect benefit from practice. The current study sought to externally validate the previously published standardized regression-based (SRB) prediction equations developed by Duff for commonly administered cognitive measures. METHOD:This study applied Duff's SRB ... Read more >>

Arch Clin Neuropsychol (Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists)
[2020, :]

Cited: 1 time

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Application of Different Standard Error Estimates in Reliable Change Methods.

Dustin B Hammers, Kevin Duff,

OBJECTIVE:This study attempted to clarify the applicability of standard error (SE) terms in clinical research when examining the impact of short-term practice effects on cognitive performance via reliable change methodology. METHOD:This study compared McSweeney's SE of the estimate (SEest) to Crawford and Howell's SE for prediction of the regression (SEpred) ... Read more >>

Arch Clin Neuropsychol (Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists)
[2019, :]

Cited: 0 times

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Predicting Premorbid Scores on the Repeatable Battery for the Assessment of Neuropsychological Status and their Validation in an Elderly Sample.

Kevin Duff, Bonnie C A Dalley, Kayla R Suhrie, Dustin B Hammers,

OBJECTIVE:Assessing cognitive change during a single visit requires the comparison of estimated premorbid abilities and current neuropsychological functioning. Although premorbid intellect has been widely examined, premorbid expectations for other cognitive abilities have received less attention. The current study sought to develop and validate premorbid estimates for the Repeatable Battery for ... Read more >>

Arch Clin Neuropsychol (Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists)
[2019, 34(3):395-402]

Cited: 0 times

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Amyloid Positivity Using [18F]Flutemetamol-PET and Cognitive Deficits in Nondemented Community-Dwelling Older Adults.

Dustin B Hammers, Taylor J Atkinson, Bonnie C A Dalley, Kayla R Suhrie, Kevin P Horn, Kelli M Rasmussen, Britney E Beardmore, Lance D Burrell, Kevin Duff, John M Hoffman,

Little research exists examining the relationship between beta-amyloid neuritic plaque density via [18F]flutemetamol binding and cognition; consequently, the purpose of the current study was to compare cognitive performances among individuals having either increased amyloid deposition (Flute+) or minimal amyloid deposition (Flute-). Twenty-seven nondemented community-dwelling adults over the age of 65 ... Read more >>

Am J Alzheimers Dis Other Demen (American journal of Alzheimer's disease and other dementias)
[2017, 32(6):320-328]

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Validity of a verbal incidental learning measure from the WAIS-IV in older adults.

Dustin B Hammers, Amanda M Kucera, Stephanie J Card, Kathryn A Tolle, Taylor J Atkinson, Kevin Duff, Robert J Spencer,

Incidental memory may reflect a form of learning in everyday life, although it is not consistently evaluated during standard neuropsychological evaluations. Further validation of a recently created measure of verbal Incidental Learning (IL) from the Wechsler Adult Intelligence Scale-IV is necessary to understand the utility of such a measure in ... Read more >>

Appl Neuropsychol Adult (Applied neuropsychology. Adult)
[2018, 25(3):266-273]

Cited: 1 time

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Relationship between 18F-Flutemetamol uptake and RBANS performance in non-demented community-dwelling older adults.

Dustin B Hammers, Taylor J Atkinson, Bonnie C A Dalley, Kayla R Suhrie, Britney E Beardmore, Lance D Burrell, Kevin P Horn, Kelli M Rasmussen, Norman L Foster, Kevin Duff, John M Hoffman,

OBJECTIVE:The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) has been used extensively for clinical care and in research for patients with mild cognitive impairment and Alzheimer's disease (AD); however, relatively few studies have evaluated the relationship between RBANS performance and AD imaging biomarkers. The purpose of the current ... Read more >>

Clin Neuropsychol (The Clinical neuropsychologist)
[2017, 31(3):531-543]

Cited: 1 time

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Short-term practice effects in mild cognitive impairment: Evaluating different methods of change.

Kevin Duff, Taylor J Atkinson, Kayla R Suhrie, Bonnie C Allred Dalley, Sydney Y Schaefer, Dustin B Hammers,

Practice effects are improvements on cognitive tests as a result of repeated exposure to testing material. However, variability exists in the literature about whether patients with amnestic mild cognitive impairment (MCI) display practice effects, which may be partially due to the methods used to calculate these changes on repeated tests. ... Read more >>

J Clin Exp Neuropsychol (Journal of clinical and experimental neuropsychology)
[2017, 39(4):396-407]

Cited: 8 times

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Clinical utility of auditory memory testing in a heart failure population.

Dustin B Hammers, Miyeon Jung, Susan J Pressler, Barbara-Jean Sullivan, Todd Koelling, Bruno Giordani,

The self-care regimen necessary in heart failure (HF) is notably complex. A complication to integrating new knowledge and behaviors is that impaired cognition has been frequently reported in patients with HF, which significantly impacts patients' health, admission and mortality rates, and instrumental activities of daily living.The identification of reliable cognitive ... Read more >>

J Cardiovasc Nurs (The Journal of cardiovascular nursing)
[2013, 28(5):444-452]

Cited: 3 times

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Amyloid deposition and cognition in older adults: the effects of premorbid intellect.

Kevin Duff, Norman L Foster, Kathryn Dennett, Dustin B Hammers, Lauren V Zollinger, Paul E Christian, Regan I Butterfield, Britney E Beardmore, Angela Y Wang, Kathryn A Morton, John M Hoffman,

Although amyloid deposition remains a marker of the development of Alzheimer's disease, results linking amyloid and cognition have been equivocal. Twenty-five community-dwelling non-demented older adults were examined with (18)F-flutemetamol, an amyloid imaging agent, and a cognitive battery, including an estimate of premorbid intellect and the Repeatable Battery for the Assessment ... Read more >>

Arch Clin Neuropsychol (Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists)
[2013, 28(7):665-671]

Cited: 13 times

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Neuropsychological, impulsive personality, and cerebral oxygenation correlates of undergraduate polysubstance use.

Dustin B Hammers, Julie A Suhr,

While the relationship between cognitive deficits and impulsive-sensation seeking has been acknowledged in prior research, the impact of impulsive personality style on substance-related cognitive deficits has not been completely elucidated. The present study explored factors related to decision making and executive functioning in 23 polysubstance-using undergraduates and 23 healthy normal ... Read more >>

J Clin Exp Neuropsychol (Journal of clinical and experimental neuropsychology)
[2010, 32(6):599-609]

Cited: 7 times

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