Improving digit span assessment of short-term verbal memory.
Improving digit span assessment of short-term verbal memory.
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DOI:
10.1080/13803395.2010.493149
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发表时间:
2011-01
影响因子:
2.2
通讯作者:
Reed B
中科院分区:
文献类型:
--
作者:
Woods DL;Kishiyamaa MM;Lund EW;Herron TJ;Edwards B;Poliva O;Hink RF;Reed B
We measured digit span (DS) in two experiments that used computerized presentation of randomized auditory digits with performance-adapted list length adjustment. A new mean span (MS) metric of DS was developed that showed reduced variance, improved test-retest reliability, and higher correlations with the results of other neuropsychological test results when compared to traditional DS measures. The MS metric also enhanced the sensitivity of forward versus backward span comparisons, enabled the development of normative performance criteria with sub-digit precision, and elucidated changes in DS performance with age- and education level. Computerized stimulus delivery and improved scoring metrics significantly enhance the precision of DS assessments of short-term verbal memory.
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