Salthouse T A
School of Psychology, Georgia Institute of Technology, USA.
J Gerontol B Psychol Sci Soc Sci. 1996 May;51(3):P166-78. doi: 10.1093/geronb/51b.3.p166.
A series of regression analyses was conducted to determine which variables in an ordered sequence had significant age-related effects after control of the immediately preceding variable in the sequence. Independent age-related effects in these types of analyses are particularly interesting because they represent age-related influences that are not mediated through earlier variables. A total of 56 analyses are reported with ordered variables representing: (a) successive trials or sessions in learning; (b) progressively more intervening events during the retention interval of a memory task; (c) successively longer stimulus presentation durations; and (d) increased processing complexity. In most of the analyses a very large proportion of the age-related effects on later variables was found to be mediated through earlier variables in the sequence.
进行了一系列回归分析，以确定在对序列中紧接在前的变量进行控制后，有序序列中的哪些变量具有显著的年龄相关效应。这类分析中独立的年龄相关效应特别有趣，因为它们代表了并非通过早期变量介导的年龄相关影响。总共报告了56项分析，其中有序变量代表：(a)学习中的连续试验或时段；(b)记忆任务保持间隔期间逐渐增多的中间事件；(c)连续更长的刺激呈现持续时间；以及(d)增加的处理复杂性。在大多数分析中，发现年龄对后期变量的影响很大一部分是通过序列中的早期变量介导的。
