![]() Dissociating constructs underlying working memory in mild cognitive impairment: A competitive queuing analysis. Libon, D.J., Gifford, K., Holman, T., and Jefferson A.J. Alterations in working memory as a function of leukoaraiosis in dementia. Capacity to maintain mental set in dementia. The impact of region-specific leukoaraiosis on working memory deficits in dementia. San Antonio: The Psychological Corporation. The WAIS-R as a neuropsychological instrument. Kaplan, E., Fein, D., Morris, R., & Delis, D. Washington, DC: The American Psychological Association. Bryant (Eds.), Clinical neuropsychology and brain function: Research, measurement, and practice: Master lectures. A process approach to neuropsychological assessment. Memory for serial order across domains: An overview of the literature and directions for future research. Mechanism in thought and morals: An address delivered before the phi Beta Kappa Society of Harvard University, June 29, 1870, with notes and afterthoughts. Memory: A contribution to experimental psychology (H. Cognitive and Behavioral Neurology, 17, 74–83.Įbbinghaus, H. Clock drawing errors in dementia: Neuropsychological and neuroanatomic considerations. Bower (Ed.), The psychology of learning and motivation: Advances in research and theory (Vol. Application des méthodes nouvelles au diagnostic du niveau intellectuel chez des enfants normaux et anormaux d’hospice et d’école primaire. Further studies are required to examine the effects of age and output-modality on these tasks.BINET A and SIMON T. Discussion & Conclusions: The current results were consistent with those from Waters and Caplan (2003), reporting composite measure increased stabilities and reliabilities for the working memory measures and all of the working memory tasks loaded onto a single factor. A principal component analysis revealed that the one-factor solution accounted for 66% of the total variance for four different working memory pointing tasks. As short-term memory measures, digit and word forward pointing span measures were highly correlated (r=0.79). Concurrent validity results suggested that the pointing version of the digit span measures shared only 25~40% of the total variance with the standardized measure of the digit span-recall. However, test-retest reliabilities increased up to 0.86 when a composite measure was used with a combination of at least two different tasks. Results The test-retest reliability results revealed that the range of Pearson’s correlation coefficients was 0.43~0.77. Fifty-five normal individuals participated in the study and performed all of the tasks. An alphabet pointing span task and a subtract-2 pointing span measure were developed as working memory tasks. Methods Digit forward and backward pointing span measures were developed by adapting the most commonly used digit forward/backward recall tasks to pointing measures. The specific aim of the study was to examine psychometric properties such as test-retest reliability, concurrent and construct validity, and internal item consistency in newly developed pointing span measures. The current study developed pointing span measures that do not require verbal output and thus can be used to assess short-term and working memory capacities in special populations with verbal-output deficits. However, there are limitations to the employment of short-term and working memory tasks developed for assessing normal cognitive processing for the evaluation of speech and/or language-impaired clinical populations. The Reliability and Validity of Short-term and Working Memory Pointing Tasks Developed for Clinical Populations with Speech and Language DisordersĬopyright ©2011 The Korean Academy of Speech-Language Pathology and Audiologyīackground & Objectives Short-term and working memory capacity theories have gained considerable attention as underlying cognitive mechanisms, deficiencies in which may account for language processing difficulties in individuals with speech and language disorders.
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