WHAT DO ADULT AGE-DIFFERENCES IN THE DIGIT SYMBOL SUBSTITUTION TEST REFLECT
WHAT DO ADULT AGE-DIFFERENCES IN THE DIGIT SYMBOL SUBSTITUTION TEST REFLECT
复制标题
DOI：
10.1093/geronj/47.3.p121
复制
发表时间：
1992-05-01
期刊：
影响因子：
--
通讯作者：
SALTHOUSE, TA
中科院分区：
文献类型：
--
作者：
SALTHOUSE, TA
本文报道了三项研究的结果，其中18至84岁的成年人进行了各种版本的数字符号替代测试。第一项研究表明，数字符号表现的年龄相关性下降在很大程度上与参与者接受的教育程度和他们自我报告的健康状况无关，其特征是整个分数分布的逐渐变化，几乎没有与年龄相关的方差增加。的年龄关系大大衰减，统计控制后的综合措施的知觉比较速度，然而，这意味着相当大的共同点之间的知觉比较速度和什么的数字符号替代测试的措施。两项进一步的研究表明，年轻人和老年人似乎使用类似的策略来执行任务，并且在用于编写响应和搜索代码表的时间比例上几乎相同。
Results from three studies are reported in which adults between 18 and 84 years of age performed various versions of the Digit Symbol Substitution Test. The first study revealed that the age-related declines in digit-symbol performance were largely independent of both the amount of education the participants had received and their self-reported health status, and were characterized by a gradual shift in the entire distribution of scores with little age-related increase in variance. The age relations were greatly attenuated, after statistical control of a composite measure of perceptual comparison speed, however, implying considerable commonalities between perceptual comparison speed and what the Digit Symbol Substitution Test measures. Two further studies indicated that young and old adults appeared to use similar strategies to perform the task, and were nearly equivalent in the proportions of time devoted to writing the responses and searching the code table.